Aspects of English Grammar

The prescriptivist English Grammar book that my parents had listed four
aspects in English, each of which could occur in any tense.
Simple			I do.
Continuous		I am doing.
Perfect		I have done.
Perfect continuous	I have been doing.

However, I normal usage, I find that several other aspects occur, some of
which are restricted as to tense.

I keep doing		Habitual
I used to do		"Perfect habitual" restricted to past tense.
I am going to		Prospective, seems unnatural to use in future tense.
I am about to		Maybe a form of incohative, may be difficult to use
in 			the future tense.

Any thoughts on these?

Pete

Reply