не мог решить

couldn't decide; couldn't solve

→ не

phrase Uncommon #15,799

couldn't decide; couldn't solve Depending on context, решить can mean either “to decide” or “to solve.” Не мог is the masculine past-tense form of “couldn't.”

RU: Он не мог решить, какой подарок купить.

EN: He couldn't decide which gift to buy.

Том не мог решить, какую книгу читать.

Tom couldn't decide which book to read.

Том не мог решить, с чего начать.

Tom couldn't decide where to start.