I can parenthesize you can parenthesize he can parenthesize we can parenthesize you can parenthesize they can parenthesize
V-ing form
I can be parenthesizing you can be parenthesizing he can be parenthesizing we can be parenthesizing you can be parenthesizing they can be parenthesizing
Perfect
I can have parenthesized you can have parenthesized he can have parenthesized we can have parenthesized you can have parenthesized they can have parenthesized
V-ing perfect
I can have been parenthesizing you can have been parenthesizing he can have been parenthesizing we can have been parenthesizing you can have been parenthesizing they can have been parenthesizing
Negation
Simple form
I cannot parenthesize you cannot parenthesize he cannot parenthesize we cannot parenthesize you cannot parenthesize they cannot parenthesize
V-ing form
I cannot be parenthesizing you cannot be parenthesizing he cannot be parenthesizing we cannot be parenthesizing you cannot be parenthesizing they cannot be parenthesizing
Perfect
I cannot have parenthesized you cannot have parenthesized he cannot have parenthesized we cannot have parenthesized you cannot have parenthesized they cannot have parenthesized
V-ing perfect
I cannot have been parenthesizing you cannot have been parenthesizing he cannot have been parenthesizing we cannot have been parenthesizing you cannot have been parenthesizing they cannot have been parenthesizing
Interrogative form
Simple form
can I parenthesize? can you parenthesize? can he parenthesize? can we parenthesize? can you parenthesize? can they parenthesize?
V-ing form
can I be parenthesizing? can you be parenthesizing? can he be parenthesizing? can we be parenthesizing? can you be parenthesizing? can they be parenthesizing?
Perfect
can I have parenthesized? can you have parenthesized? can he have parenthesized? can we have parenthesized? can you have parenthesized? can they have parenthesized?
V-ing perfect
can I have been parenthesizing? can you have been parenthesizing? can he have been parenthesizing? can we have been parenthesizing? can you have been parenthesizing? can they have been parenthesizing?
Interro-negative form
Simple form
can I not parenthesize? can you not parenthesize? can he not parenthesize? can we not parenthesize? can you not parenthesize? can they not parenthesize?
V-ing form
can I not be parenthesizing? can you not be parenthesizing? can he not be parenthesizing? can we not be parenthesizing? can you not be parenthesizing? can they not be parenthesizing?
Perfect
can I not have parenthesized? can you not have parenthesized? can he not have parenthesized? can we not have parenthesized? can you not have parenthesized? can they not have parenthesized?
V-ing perfect
can I not have been parenthesizing? can you not have been parenthesizing? can he not have been parenthesizing? can we not have been parenthesizing? can you not have been parenthesizing? can they not have been parenthesizing?