This is the 130th most frequent Czech word.
mohla
"Mohla" means "could" or "was able to" (feminine form) in English.
This is a polite request or question, using 'mohla' to express possibility or permission in the first person singular, feminine.
Mohla bych si dát kávu, prosím?
Could I have a coffee, please?
In this sentence, 'mohla' is used in the third person singular, feminine, to denote a hypothetical situation.
Mohla by být zítra hezké počasí.
The weather could be nice tomorrow.
Here, 'mohla' is used to describe a past ability or capacity in the first person singular, feminine.