Preposition Dino

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after

later than; following in time

  • Use after for time order: later than a time or event.
  • After usually takes an object: after dinner / after I finish.
  • For duration from now, prefer in: "in two hours" (unless a clear reference event exists).

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Examples

Time examples

I usually shower after work.

Let's talk after class.

Related prepositions

Key differences

After expresses time order "later than...". Common confusions: later/afterwards (adverbs), in (from now), and since (continuing from a starting point).

later

Later is an adverb and often has no object; after is a preposition that takes an object (time/event/clause).

laterI'll call you later.
afterI'll call you after dinner.

afterwards

Afterwards is an adverb meaning then; after usually introduces a specific reference point.

afterwardsWe ate dinner and went for a walk afterwards.
afterWe went for a walk after dinner.

in

In + duration is counted from now ("in two hours"); after + duration usually needs a reference event ("after two hours of waiting").

inI'll be back in two hours.
afterI'll leave after two hours of waiting.

Quick check questions (decision tree)

  • Is it time order: later than a time point or event?

    Yes -> use after (after dinner / after 8 p.m. / after I finish).

  • Is it a duration counted from now ("two hours from now")?

    Yes -> prefer in ("in two hours"), not after unless a clear reference event exists.

  • Is there no object after after and you only mean then?

    Yes -> use afterwards / later.

  • Is it a continuing state from a starting point up to now?

    Yes -> use since (since 2020 / since Monday), not after.

Common collocations

After a time or event

after school
after work
after class
after dinner
after the meeting
after lunch

After + clause / -ing

after I finish
after you arrive
after we get home
after she left
after finishing work
after talking to him

Fixed phrases

after all
after a while
after that
after midnight
after dark
after the fact

Common mistakes

Avoid: I'll be home after two hours.

Use: I'll be home in two hours.

Reason: Use in for duration counted from now. After two hours usually needs a reference event (after two hours of driving/waiting).

Avoid: I'll call you later dinner.

Use: I'll call you after dinner.

Reason: Later is an adverb and does not take an object; after can.

Avoid: After, we went home.

Use: Afterwards, we went home. / After dinner, we went home.

Reason: After needs an object; without an object, use afterwards or add the reference.

Avoid: I haven't seen her after Monday.

Use: I haven't seen her since Monday.

Reason: Since means starting then and continuing to now; after is only sequence.

Mini quiz

Question 1

I'll call you ___ dinner.

Choose an answer

Question 2

I'll be back ___ two hours.

Choose an answer

Question 3

We finished dinner and went for a walk ___.

Choose an answer

Quick FAQ

What does "after" mean?+

"After" expresses time order: later than a time or event. It usually introduces a reference point (after dinner, after 8 p.m.).

What can come after "after"?+

Three common patterns: a noun (after class), a time point (after 8 p.m.), or a clause (after I finish). As a preposition, after usually needs an object.

After vs later: what is the difference?+

Later is an adverb and often has no object: "I'll call you later." After is a preposition and needs an object: "I'll call you after dinner."

After vs afterwards: what is the difference?+

Afterwards is an adverb meaning then: "We left afterwards." After needs an object: "We left after dinner."

After vs "in two hours": which one should I use?+

"In two hours" is counted from now: "I'll be back in two hours." "After two hours" usually needs a reference event: "after two hours of waiting/driving."

After vs since: how do I choose?+

Since means starting then and continuing to now: "I have lived here since 2020." After is only sequence: "I moved here after 2020."

What is a common beginner mistake with after?+

Using after for "from now" duration. In most cases you want "in two hours", not "after two hours" unless a reference event is explicit.

What are common collocations with "after"?+

High-frequency examples: after school, after work, after class, after dinner, after the meeting, after a while.