0 short form of could not:
1 contraction of could not:
She couldn't study with the children chasing around the house.
I couldn't understand the directions on the packet.
中文繁体
（could not的縮略形式）…
More中文简体
（could not的缩略形式）…
MorePolski
nie mógł itp.…
MoreTürk dili
could' yardımcı fiilinin olumsuz hali…
Moreрусский язык
сокращ. от could not…
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