This is the 227th most frequent Croatian word.
mogla
"Mogla" means "could" (feminine singular, past tense) in English.
In this sentence, 'mogla' is past conditional, referring to an ability or possibility that existed in the past but did not happen.
Čula sam da si mogla pobijediti u utrci.
I heard you could have won the race.
Here, 'mogla' is used in the conditional tense indicating a possibility or offer of help.
Mogla bih ti pomoći oko zadaće.
I could help you with your homework.
In this example, 'mogla' is used as part of a hypothetical past situation expressing what could have happened if conditions were different.