In the following question, some parts of the sentence have an error and some are correct. Find out which part of a sentence has an error. If a sentence is free from error, your answer is (d).
We have been knowing (a)/ each other (b)/ since we were children (c)/ No error (d).
We have been knowing
each other
since we were children
No error
A.
We have been knowing
Use 'have known' in place of 'have been knowing' in the first part of the sentence.