The Verbal Standing Outside of Time
In which a verb sets its tense aside to borrow another part of speech's job
Sophia. Philo, when do you read?
Philo. I read every evening.
Sophia. Ordinary enough — a subject, a tensed verb, present, habitual. Now finish this one instead: "______ strengthens the mind."
Philo. Reading strengthens the mind.
Sophia. Same root you just used a moment ago — "read" — and now it's sitting in the subject's own seat, the seat a noun usually holds. Tell me what tense "reading" is in, there.
Philo. (pausing) None, I think. It isn't happening now particularly, or in the past, or the future. It's just... true, whenever.
Sophia. Because it's stepped clean outside of tense to do this job. A verb shaped this way — the -ing form, standing in for a noun — is called a gerund, and unlike every verb we've studied all year, it carries no tense and no person at all. It doesn't agree with anybody. It simply names the action itself, as a thing, the way "wisdom" or "silence" names a thing.
Gerunds
The -ing form of a verb, functioning as a noun — subject, object, or complement. Carries no tense, no person. Reading strengthens the mind.
Sophia. There's a second way a verb can step outside its own tense to do a noun's work, and you reach for it constantly without noticing. Marcos — what does Sophia want, most days, from all of you?
Marcos. Sophia wants us to listen.
Sophia. "To listen" — "to" plus the bare verb, carrying no tense either, filling the same kind of seat "reading" filled a moment ago. We call this shape the infinitive, and between the two of them, gerund and infinitive, you now have two separate disguises a verb can put on to stop being a verb and start behaving like a noun instead.
Infinitives
"To" + the base verb, also functioning as a noun (or, elsewhere, an adjective or adverb). No tense, no person. Sophia wants us to listen.
Demetria. So which are they, in the end — verbs, or nouns?
Sophia. Neither, cleanly — and the honest answer is worth holding onto rather than forcing a choice. Grammarians call the whole family verbals: a verb's shape and a verb's insides, sent to do a different part of speech's job. Watch what "reading" still lets you do, even sitting in a noun's seat: "reading books quickly" — "books" is a genuine object, "quickly" a genuine adverb, exactly as they'd attach to "read" itself. A true noun could never take either directly; it would need "the quick reading of books" instead, leaning on an adjective and a preposition to do what the gerund does on its own. The verb's machinery survives the disguise. Only the job changes.
Philo. And the infinitive keeps even more of it.
Sophia. It does — it can carry aspect and voice no ordinary noun ever could: "to have read," "to be read." And it isn't even limited to a noun's job the way the gerund is. "A book to read" — there, "to read" is modifying "book," an adjective's work. "He ran to escape" — there, it's modifying "ran," an adverb's work. Three different jobs, one verbal shape, never quite stopping being a verb underneath any of them.
Verbals
Gerunds and infinitives are properly called verbals: verb in form and internal behaviour (they can take objects, be modified by adverbs, carry aspect and voice) — a different part of speech's job on the outside. A gerund only ever does a noun's job; an infinitive can do a noun's, an adjective's, or an adverb's.
reading books quickly (object + adverb survive, as in "read") · a book to read (infinitive as adjective) · he ran to escape (infinitive as adverb)
Demetria. So they're simply the same thing, in two different costumes?
Sophia. Close, but not quite interchangeable — and this is where it gets genuinely strange, because certain verbs will only ever accept one costume, never the other, for no reason you could argue your way toward. "Philo enjoys reading." Never "Philo enjoys to read" — "enjoy" simply refuses the infinitive outright. "Sophia decided to teach." Never "Sophia decided teaching" — "decide" refuses the gerund just as flatly. There's no logic underneath either refusal. You learn which each verb demands the same way you learned "afraid of" instead of "afraid from" — by meeting it enough times that the wrong one starts sounding wrong on its own.
Some verbs demand a gerund only
enjoy, avoid, admit, suggest, finish, consider, mind, risk, quit, deny, practise
Philo enjoys reading. Never enjoys to read.
Some verbs demand an infinitive only
want, decide, hope, plan, promise, refuse, agree, offer, manage, afford, learn
Sophia decided to teach. Never decided teaching.
Sophia. A third group genuinely doesn't care which costume you choose — the meaning barely shifts either way. "It began raining" or "it began to rain." "Marcos likes arguing" or "Marcos likes to argue." Begin, start, continue, like, love, hate, prefer — all comfortably indifferent.
Sophia. And then a small, treacherous handful where the costume changes the entire meaning of the sentence, not merely its flavour. Philo — you were reading this morning, and something interrupted you. Say it one way.
Philo. I stopped reading when Marcos arrived.
Sophia. The reading itself ended — that activity simply stopped. Now say it the other way, as though you were reading, and paused that reading in order to do something else entirely.
Philo. I stopped to read the notice on the door.
Sophia. Utterly different events, from the same two words rearranged around "stop." The first: an activity ends. The second: some other activity pauses so that reading can happen instead. "Remember" plays the same trick — "Sophia remembered locking the door" recalls something already done; "Sophia remembered to lock the door" means she didn't forget the duty in the first place. "Forget," "try," and "regret" all carry a version of the same split.
Verbs where the choice changes the meaning
stop + gerund — the activity ends. stop + infinitive — you pause to do something else.
remember/forget + gerund — a past action, recalled or not. remember/forget + infinitive — a duty, done or not.
try + gerund — an experiment. try + infinitive — an effort against difficulty.
regret + gerund — sorry about the past. regret + infinitive — formally announcing bad news. I regret to inform you the ferry is delayed.
Sophia. One rule left, and this one has no exceptions at all, anywhere. Whatever follows a preposition — any preposition, in any sentence — must wear the gerund costume. Never the infinitive. "Interested in reading." Never "interested in to read." "Afraid of losing." Never "afraid of to lose." A preposition simply will not govern an infinitive, full stop.
After a preposition, always the gerund
No exceptions. interested in reading · afraid of losing · insist on staying · good at arguing
Sophia. Which brings us to a pair of phrases that look almost identical on the page and mean two unrelated things, depending entirely on which job "to" is doing that day. "I used to read every evening." A habit, now finished — "to" there is only marking the infinitive, so the bare verb follows it, no "-ing" in sight. Now: "I am used to reading every evening." An entirely different claim — accustomed, comfortable with something ongoing — and this time "used" has become an adjective, with "to" standing in front of it as an ordinary preposition. And a preposition, as you've just learned without exception, demands its gerund.
used to vs. be/get used to
used to + bare infinitive — a finished past habit. I used to read every evening.
be/get used to + preposition + gerund — accustomed to something. I am used to reading every evening.
Philo. My own language keeps this whole distinction far less hidden than yours does. Hebrew has its own verb shape for exactly this job — the infinitive construct — and it's built with the very same prefix, le-, that means simply "to" or "for" wherever it appears. The same letter that would put "to" in front of an ordinary noun also puts "to" in front of this timeless form of the verb. You've been hiding two different jobs inside one small word, "to," the whole time. My language spells them with the very same letter on purpose, because they were never two different words to begin with — only two different uses of the same preposition.
Sophia. Which is exactly the seam English keeps papering over with spelling, and exactly why "used to" trips every one of you the first several times you meet it — two entirely different grammatical animals, wearing the same three letters as a disguise.
Marcos. So — what happens when the verb doesn't even bother with "to" or "-ing," and just glues itself straight onto a small word instead? "Give up." "Look for." Those aren't wearing either costume at all.
Sophia. Which is exactly where we're headed next — phrasal verbs, and the particles that ride along behind them, some of which are secretly the same prepositions you've already spent two lessons studying, and some of which aren't prepositions at all, however much they look it.
The lesson in a table
Gerund or infinitive, for copying out
| Pattern | Verbs | Example |
|---|---|---|
| Gerund only | enjoy, avoid, admit, suggest, finish, consider, mind, risk, quit, deny | Philo enjoys reading. |
| Infinitive only | want, decide, hope, plan, promise, refuse, agree, offer, manage, afford | Sophia decided to teach. |
| Either, same meaning | begin, start, continue, like, love, hate, prefer | It began raining / to rain. |
| Either, different meaning | stop, remember, forget, try, regret | Stopped reading / stopped to read. |
| After a preposition | always gerund | interested in reading |
Exercises
A. Gerund or infinitive?
Complete each sentence with the correct form of the verb in brackets.
- Marcos avoided ______ (answer) the question directly.
- Sophia promised ______ (explain) the rule again tomorrow.
- Philo is interested in ______ (learn) Greek philosophy.
- Demetria finished ______ (copy) the scroll before dusk.
- They hope ______ (finish) the translation by evening.
B. Same verb, different meaning
Explain the difference in meaning between each pair.
- Philo stopped arguing. / Philo stopped to argue.
- Sophia remembered locking the archive. / Sophia remembered to lock the archive.
- Marcos tried explaining it twice. / Marcos tried to explain it, but couldn't.
C. Write your own
- One sentence with a gerund-only verb.
- One sentence with an infinitive-only verb.
- One sentence with a preposition followed correctly by a gerund.
- One pair of sentences showing the difference between "used to" and "be used to."
Teacher's notes
- What this lesson is doing. Gerunds and infinitives are introduced together as two disguises a verb can wear to step outside tense and person entirely and do a noun's work — the "no tense" framing (explicit in Philo's "none, I think" line) is the conceptual anchor the whole lesson hangs on, distinguishing gerunds/infinitives from every finite verb form studied since Lesson Three.
- On "verbals." Deliberately resists letting pupils settle for "gerunds and infinitives are just nouns" — the internal test (a gerund can still take a direct object and be modified by an adverb, which no true noun can do) is the concrete proof, not just the terminology. This also sets up the participle, coming in a later lesson, as the third member of the same family — verb inside, adjective's job outside.
- The arbitrary-verb-pattern trap. As with dependent prepositions in Lesson Ten, the lesson is honest that gerund-only vs. infinitive-only verbs follow no recoverable logic — pupils should be told directly not to hunt for a rule that isn't there, and to expect exposure rather than deduction to fix it.
- The meaning-changing verbs. Worth the most classroom time and repetition — stop/remember/forget/try/regret are common enough that getting them wrong is a real, frequent error, not a rare edge case. The "stopped reading" vs. "stopped to read" minimal pair is deliberately built from the same verb pupils just used, so the contrast lands immediately.
- The preposition rule. Presented as an absolute, exceptionless rule (unlike almost everything else in this lesson) because it genuinely is one — this is worth pupils memorizing as a hard rule rather than a tendency.
- On "used to" vs. "be/get used to." A classic, high-frequency confusion, deliberately solved by tying it back to the preposition rule just taught rather than presenting it as a third arbitrary fact — "used" as an adjective, "to" as the preposition governing it, therefore a gerund follows, exactly as the rule predicts.
- On Hebrew's infinitive construct and le-. Accurate, not simplified: Biblical Hebrew's infinitive construct is very commonly prefixed with le-, the same preposition meaning "to/for" used elsewhere in the language (already introduced in Lesson Ten) — a genuine case of a single morpheme doing overtly what English's "to" does covertly, which is exactly why English's "used to" pair is so easy to get wrong and Hebrew's equivalent isn't.
- Answers to A: answering; to explain; learning; copying; to finish.
- Where it goes next. Lesson Fourteen is phrasal verbs, deliberately linked back to the prepositions studied in Lessons Nine and Ten — some particles in phrasal verbs are the very same words, doing a related but distinct job.