Question

He apologized in advance for ___ to see us during our visit.
a. Being not able
b. Having been not able
c. Not being able
d. Not having been able

Answer 1

Answer:

being not able.........

Answer 2

The correct answer is :- c.) Not being able

• Not being able means he or she is unable to do any thing or work.
• It is done in advance so it is a present tense.

Depending upon these circumstances,

• If the work took place now then we can use Not being able.

• If the work took place in the past then we can also use Not having been able.
• In past tense we use been .

So the correct answer is Option c :- not being able.