English verb conjugation
COULD SWAMP

Regular verb: swamp - swamped - swamped

Affirmation

Simple form	V-ing form
I could swamp you could swamp he could swamp we could swamp you could swamp they could swamp	I could be swamping you could be swamping he could be swamping we could be swamping you could be swamping they could be swamping
Perfect	V-ing perfect
I could have swamped you could have swamped he could have swamped we could have swamped you could have swamped they could have swamped	I could have been swamping you could have been swamping he could have been swamping we could have been swamping you could have been swamping they could have been swamping

Negation

Simple form	V-ing form
I could not swamp you could not swamp he could not swamp we could not swamp you could not swamp they could not swamp	I could not be swamping you could not be swamping he could not be swamping we could not be swamping you could not be swamping they could not be swamping
Perfect	V-ing perfect
I could not have swamped you could not have swamped he could not have swamped we could not have swamped you could not have swamped they could not have swamped	I could not have been swamping you could not have been swamping he could not have been swamping we could not have been swamping you could not have been swamping they could not have been swamping

Interrogative form

Simple form	V-ing form
could I swamp? could you swamp? could he swamp? could we swamp? could you swamp? could they swamp?	could I be swamping? could you be swamping? could he be swamping? could we be swamping? could you be swamping? could they be swamping?
Perfect	V-ing perfect
could I have swamped? could you have swamped? could he have swamped? could we have swamped? could you have swamped? could they have swamped?	could I have been swamping? could you have been swamping? could he have been swamping? could we have been swamping? could you have been swamping? could they have been swamping?

Interro-negative form

Simple form	V-ing form
could I not swamp? could you not swamp? could he not swamp? could we not swamp? could you not swamp? could they not swamp?	could I not be swamping? could you not be swamping? could he not be swamping? could we not be swamping? could you not be swamping? could they not be swamping?
Perfect	V-ing perfect
could I not have swamped? could you not have swamped? could he not have swamped? could we not have swamped? could you not have swamped? could they not have swamped?	could I not have been swamping? could you not have been swamping? could he not have been swamping? could we not have been swamping? could you not have been swamping? could they not have been swamping?