Verb reduplication (2)
When the action has already taken place, the reduplicated form is built a little differently.
1. One-syllable verbs
A 了 A
verb + 了 + verb
This form shows the action lasted a short while or was done just once.
2. Two-syllable verbs
Two-syllable verbs are usually not reduplicated directly in the past; the form AB 了一下 is used instead.
AB 了一下
3. Separable verbs
A 了 AB
For example:
帮了帮忙 — gave a bit of help
Examples
我看了看网上的介绍。
I had a look at the information online.
看 + 了 + 看
look + 了 + look
我I
看了看had a look
网上的介绍the information online
Here 看 is a one-syllable verb, so the form 看了看 is used.
我休息了一下,现在觉得不累了。
I rested for a bit, and now I don't feel tired any more.
休息 + 了一下
rest + for a bit
我I
休息了一下rested for a bit
现在now
觉得不累了don't feel tired any more
Here 休息 is a two-syllable verb, so the form 休息了一下 is used.
他昨天来帮了帮忙。
He came over yesterday and gave a bit of help.
帮 + 了 + 帮忙
help + 了 + help
他he
昨天yesterday
来come
帮了帮忙gave a bit of help
Here 帮忙 is a separable verb, so the form 帮了帮忙 is used.
Quick rule
One-syllable verb — A 了 A: 看了看 — had a look
Two-syllable verb — AB 了一下: 休息了一下 — rested for a bit
Separable verb — A 了 AB: 帮了帮忙 — gave a bit of help