didn't understand
Том не понимал.
Tom didn't understand.
I never understood them.
Том тогда не понимал по-французски.
Tom didn't understand French back then.
I really didn't understand.
Уверена, он не понимал о чем говорил.
I'm sure he didn't know what he was talking about.
— Летняя пора (1955)
I never understood him.
Том не понимал, почему Мэри себя так вела.
Tom didn’t understand why Mary was behaving that way.
Я не понимал, как мне повезло.
I didn't realize how lucky I was.
— Дом странных детей Мисс Перегрин (2016)
Том, похоже, меня не понимал.
Tom didn’t seem to understand me.