C1Englishen.c1.007

Could have done vs was able to

Structure:

could have + past participle / was-were able to + base verb

Could have = unrealised ability or missed opportunity. Was able to = specific achieved action in the past.

Example:

I could have finished it yesterday, but I chose to wait.

Examples

I could have finished it yesterday, but I chose to wait.

Question 1 of 20 correct

Which grammar pattern does this sentence use? "I could have finished it yesterday, but I chose to wait."

Absolute construction (nominative absolute)

Absolute construction: All things considered

Absolute construction: The matter having been settled

Advanced affixation: noun and adjective suffixes

Advanced affixation: productive prefixes