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could
01
мог
used as the past tense of ‘can’
02
может
used to ask if one can do something
Transitive
03
мочь
used to show the possibility of something happening or being the case
Transitive
04
используется для рекомендации
used to present an offer or recommendation
Transitive
could
v
Пример
Before the accident, he could lift heavy weights easily.
He could solve complex math problems effortlessly in his youth.
Yesterday, I could see the stars clearly in the night sky.
When I was a child, I could climb trees without any fear.
When I was younger, I could run faster.