English verb conjugation
COULD PRESS

Regular verb: press - pressed - pressed

Affirmation

Simple form	V-ing form
I could press you could press he could press we could press you could press they could press	I could be pressing you could be pressing he could be pressing we could be pressing you could be pressing they could be pressing
Perfect	V-ing perfect
I could have pressed you could have pressed he could have pressed we could have pressed you could have pressed they could have pressed	I could have been pressing you could have been pressing he could have been pressing we could have been pressing you could have been pressing they could have been pressing

Negation

Simple form	V-ing form
I couldn't press you couldn't press he couldn't press we couldn't press you couldn't press they couldn't press	I couldn't be pressing you couldn't be pressing he couldn't be pressing we couldn't be pressing you couldn't be pressing they couldn't be pressing
Perfect	V-ing perfect
I couldn't have pressed you couldn't have pressed he couldn't have pressed we couldn't have pressed you couldn't have pressed they couldn't have pressed	I couldn't have been pressing you couldn't have been pressing he couldn't have been pressing we couldn't have been pressing you couldn't have been pressing they couldn't have been pressing

Interrogative form

Simple form	V-ing form
could I press? could you press? could he press? could we press? could you press? could they press?	could I be pressing? could you be pressing? could he be pressing? could we be pressing? could you be pressing? could they be pressing?
Perfect	V-ing perfect
could I have pressed? could you have pressed? could he have pressed? could we have pressed? could you have pressed? could they have pressed?	could I have been pressing? could you have been pressing? could he have been pressing? could we have been pressing? could you have been pressing? could they have been pressing?

Interro-negative form

Simple form	V-ing form
couldn't I press? couldn't you press? couldn't he press? couldn't we press? couldn't you press? couldn't they press?	couldn't I be pressing? couldn't you be pressing? couldn't he be pressing? couldn't we be pressing? couldn't you be pressing? couldn't they be pressing?
Perfect	V-ing perfect
couldn't I have pressed? couldn't you have pressed? couldn't he have pressed? couldn't we have pressed? couldn't you have pressed? couldn't they have pressed?	couldn't I have been pressing? couldn't you have been pressing? couldn't he have been pressing? couldn't we have been pressing? couldn't you have been pressing? couldn't they have been pressing?