I have two confusing sentences and I am in two minds whether the first or the second is more grammatically correct: He was by far the most knowledgeable person to have commented on the subject, so ...
Can someone help me to explain the two following structures — identifying parts of speech, and in particular why we’re using the -ing form of have in the first? How about having lunch? Why don't we ...
I've been hearing this sentence structure for a while, so i wanted to learn about it but couldn't find specific information on the internet since i didn't know how this structure was named in English ...