English verb conjugation
COULD NITPICK

Regular verb: nitpick - nitpicked - nitpicked

Affirmation

Simple form	V-ing form
I could nitpick you could nitpick she could nitpick we could nitpick you could nitpick they could nitpick	I could be nitpicking you could be nitpicking she could be nitpicking we could be nitpicking you could be nitpicking they could be nitpicking
Perfect	V-ing perfect
I could have nitpicked you could have nitpicked she could have nitpicked we could have nitpicked you could have nitpicked they could have nitpicked	I could have been nitpicking you could have been nitpicking she could have been nitpicking we could have been nitpicking you could have been nitpicking they could have been nitpicking

Negation

Simple form	V-ing form
I couldn't nitpick you couldn't nitpick she couldn't nitpick we couldn't nitpick you couldn't nitpick they couldn't nitpick	I couldn't be nitpicking you couldn't be nitpicking she couldn't be nitpicking we couldn't be nitpicking you couldn't be nitpicking they couldn't be nitpicking
Perfect	V-ing perfect
I couldn't have nitpicked you couldn't have nitpicked she couldn't have nitpicked we couldn't have nitpicked you couldn't have nitpicked they couldn't have nitpicked	I couldn't have been nitpicking you couldn't have been nitpicking she couldn't have been nitpicking we couldn't have been nitpicking you couldn't have been nitpicking they couldn't have been nitpicking

Interrogative form

Simple form	V-ing form
could I nitpick? could you nitpick? could she nitpick? could we nitpick? could you nitpick? could they nitpick?	could I be nitpicking? could you be nitpicking? could she be nitpicking? could we be nitpicking? could you be nitpicking? could they be nitpicking?
Perfect	V-ing perfect
could I have nitpicked? could you have nitpicked? could she have nitpicked? could we have nitpicked? could you have nitpicked? could they have nitpicked?	could I have been nitpicking? could you have been nitpicking? could she have been nitpicking? could we have been nitpicking? could you have been nitpicking? could they have been nitpicking?

Interro-negative form

Simple form	V-ing form
couldn't I nitpick? couldn't you nitpick? couldn't she nitpick? couldn't we nitpick? couldn't you nitpick? couldn't they nitpick?	couldn't I be nitpicking? couldn't you be nitpicking? couldn't she be nitpicking? couldn't we be nitpicking? couldn't you be nitpicking? couldn't they be nitpicking?
Perfect	V-ing perfect
couldn't I have nitpicked? couldn't you have nitpicked? couldn't she have nitpicked? couldn't we have nitpicked? couldn't you have nitpicked? couldn't they have nitpicked?	couldn't I have been nitpicking? couldn't you have been nitpicking? couldn't she have been nitpicking? couldn't we have been nitpicking? couldn't you have been nitpicking? couldn't they have been nitpicking?