English verb conjugation
MUST SWAMP

Regular verb: swamp - swamped - swamped

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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