English verb conjugation
COULD PEAK

Regular verb: peak - peaked - peaked

Affirmation

Simple form	V-ing form
I could peak you could peak he could peak we could peak you could peak they could peak	I could be peaking you could be peaking he could be peaking we could be peaking you could be peaking they could be peaking
Perfect	V-ing perfect
I could have peaked you could have peaked he could have peaked we could have peaked you could have peaked they could have peaked	I could have been peaking you could have been peaking he could have been peaking we could have been peaking you could have been peaking they could have been peaking

Negation

Simple form	V-ing form
I could not peak you could not peak he could not peak we could not peak you could not peak they could not peak	I could not be peaking you could not be peaking he could not be peaking we could not be peaking you could not be peaking they could not be peaking
Perfect	V-ing perfect
I could not have peaked you could not have peaked he could not have peaked we could not have peaked you could not have peaked they could not have peaked	I could not have been peaking you could not have been peaking he could not have been peaking we could not have been peaking you could not have been peaking they could not have been peaking

Interrogative form

Simple form	V-ing form
could I peak? could you peak? could he peak? could we peak? could you peak? could they peak?	could I be peaking? could you be peaking? could he be peaking? could we be peaking? could you be peaking? could they be peaking?
Perfect	V-ing perfect
could I have peaked? could you have peaked? could he have peaked? could we have peaked? could you have peaked? could they have peaked?	could I have been peaking? could you have been peaking? could he have been peaking? could we have been peaking? could you have been peaking? could they have been peaking?

Interro-negative form

Simple form	V-ing form
could I not peak? could you not peak? could he not peak? could we not peak? could you not peak? could they not peak?	could I not be peaking? could you not be peaking? could he not be peaking? could we not be peaking? could you not be peaking? could they not be peaking?
Perfect	V-ing perfect
could I not have peaked? could you not have peaked? could he not have peaked? could we not have peaked? could you not have peaked? could they not have peaked?	could I not have been peaking? could you not have been peaking? could he not have been peaking? could we not have been peaking? could you not have been peaking? could they not have been peaking?