in English"regret"is a verb that is expressed as regret or regret for something that has happened or failed to happen. Here it is:"regret"Some common usages and fixed collocations:
General Usage:
i regret not taking the opportunity when it was presented to me.(I regret not taking the opportunity in the first place.) ）
she regrets her decision to quit her job.(She regretted her decision to resign.) ）
Collocations related to something:
i regret the error in my report.(I'm sorry for the error in the report.) ）
do you regret the time you spent there?(Do you regret the time you spent there?)）
with nouns"decision"Related collocations:
he deeply regrets the decision he made.(He deeply regretted the decision he made.) ）
she expressed regret over the choice she had to make.(She regretted the choice she had to make.) ）
with"not"Combination of use:
i regret not studying harder in school.(I regret not studying harder in school.) ）
they regret not attending the event.(They regret not attending that event.) ）
with"that"Clause related collocations:
she regrets that she didn't listen to the advice.(She regrets that she didn't follow the advice.) ）
i regret that i cannot join you this time.(I'm sorry, I can't be with you this time.) ）
Collocations related to exclamation sentences:
what a shame! i regret missing the concert.(What a pity!)I regret missing the ** meeting. ）
with"express," "feel," "show"and other verb-related collocations:
he expressed regret for his thoughtless comments.(He apologized for his flippant comment.) ）
she felt regret about not attending the party.(She regretted not being able to attend the party.) ）
the letter showed his deep regret for the mistake.(The letter expresses his deep apologies for the mistake.) ）