How to write shorter time clauses: before eating, after finishing
Short answer: When the same person does both actions, shorten before, after and while clauses with an -ing word: Before I eat becomes Before eating, and After I finished becomes After finishing. When the doers are different, keep the full clause: After the rain stopped, we went out.
🎯 I can make a time clause shorter.
At a glance
| Full clause | Short form | Same doer? |
|---|---|---|
| Before I eat, I wash my hands. | Before eating, I wash my hands. | yes |
| After we finished lunch, we played. | After finishing lunch, we played. | yes |
| After the rain stopped, we went out. | — | no: keep the full clause |
How to write it
- Write the full sentence with before, after or while.
- Check the doer. Is it the same in both parts?
- If yes, drop the subject and use the -ing form.
- If no, keep the full clause.
Rewrite practice
- Before:
Before I cross the road, I look left and right.
After: Before crossing the road, I look left and right.
Same doer. - Before:
After she read the message, she smiled.
After: After reading the message, she smiled.
Same doer. - Before:
While he waited for the bus, he checked his phone.
After: While waiting for the bus, he checked his phone.
Same doer.
Common mistakes
After eating, the rain stopped.→ After we ate, the rain stopped.
The rain did not eat: different doers need a full clause.Before go to bed, I read.→ Before going to bed, I read.
After before, use -ing.After finished, we played.→ After finishing, we played.
Use -ing, not the past.
Full clause or short form?
The two forms mean the same. The short form is more compact.
| Full clause | Short form |
|---|---|
| After she ate, she slept. | After eating, she slept. |
| While I was walking, I sang. | While walking, I sang. |
Check yourself
- Shorten: “Before I eat, I wash my hands.”
Show the answer
Before eating, I wash my hands. Same doer.
- Can you shorten “After the bell rang, we left”?
Show the answer
No. Two doers.
- Fix: “After finished my homework, I played.”
Show the answer
After finishing my homework, I played. Use -ing.
Rule cards that help
- Shorter time clauses: before eating: If the doer is the same, before / after / while can be followed by an -ing word instead of a full clause.
Questions
Is the short form more formal?
It is common in writing and speech. The full clause is clearer if you are not sure.
What about when?
When can also take -ing in some cases: When crossing the road, be careful.
Where is the rule?
See the rule article on shorter time clauses.
Part of 🌉 Because, when, if, who and more (stone 2 of the Learning Path). See also the English writing guide. Đọc bằng tiếng Việt.
Written for English learners by the English for Fun team. How we write our lessons · Last updated 2026-11-05.
Reviewed by Chinh Q. Hoang, PhD, founder, English for Fun · 2026-10-30