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 can't parenthesize you can't parenthesize he can't parenthesize we can't parenthesize you can't parenthesize they can't parenthesize
V-ing form
I can't be parenthesizing you can't be parenthesizing he can't be parenthesizing we can't be parenthesizing you can't be parenthesizing they can't be parenthesizing
Perfect
I can't have parenthesized you can't have parenthesized he can't have parenthesized we can't have parenthesized you can't have parenthesized they can't have parenthesized
V-ing perfect
I can't have been parenthesizing you can't have been parenthesizing he can't have been parenthesizing we can't have been parenthesizing you can't have been parenthesizing they can't 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't I parenthesize? can't you parenthesize? can't he parenthesize? can't we parenthesize? can't you parenthesize? can't they parenthesize?
V-ing form
can't I be parenthesizing? can't you be parenthesizing? can't he be parenthesizing? can't we be parenthesizing? can't you be parenthesizing? can't they be parenthesizing?
Perfect
can't I have parenthesized? can't you have parenthesized? can't he have parenthesized? can't we have parenthesized? can't you have parenthesized? can't they have parenthesized?
V-ing perfect
can't I have been parenthesizing? can't you have been parenthesizing? can't he have been parenthesizing? can't we have been parenthesizing? can't you have been parenthesizing? can't they have been parenthesizing?