(1) Can ING words (continueous) such as doing, eating....etc can come after "to" and "of"?
as 'to doing', 'of doing'.
It seems I am in the misconception as ing words comes only after these words
For, am, is, was, are, were, be.
(2) I know 'AND' can come after comma (,), But can it come just before comma?
(3) Normally BUT, AND, OR, THEN used to join two statements. Is it allowed to start a statement with these words?
(4) Can a NOR without NEITHER is allowed in GMAT? I saw one news article having NOR without NEITHER.