English verb conjugation
MUST FLY-FISH

Regular verb: fly-fish - fly-fished - fly-fished

Affirmation

Simple form	V-ing form
I must fly-fish you must fly-fish he must fly-fish we must fly-fish you must fly-fish they must fly-fish	I must be fly-fishing you must be fly-fishing he must be fly-fishing we must be fly-fishing you must be fly-fishing they must be fly-fishing
Perfect	V-ing perfect
I must have fly-fished you must have fly-fished he must have fly-fished we must have fly-fished you must have fly-fished they must have fly-fished	I must have been fly-fishing you must have been fly-fishing he must have been fly-fishing we must have been fly-fishing you must have been fly-fishing they must have been fly-fishing

Negation

Simple form	V-ing form
I must not fly-fish you must not fly-fish he must not fly-fish we must not fly-fish you must not fly-fish they must not fly-fish	I must not be fly-fishing you must not be fly-fishing he must not be fly-fishing we must not be fly-fishing you must not be fly-fishing they must not be fly-fishing
Perfect	V-ing perfect
I must not have fly-fished you must not have fly-fished he must not have fly-fished we must not have fly-fished you must not have fly-fished they must not have fly-fished	I must not have been fly-fishing you must not have been fly-fishing he must not have been fly-fishing we must not have been fly-fishing you must not have been fly-fishing they must not have been fly-fishing

Interrogative form

Simple form	V-ing form
must I fly-fish? must you fly-fish? must he fly-fish? must we fly-fish? must you fly-fish? must they fly-fish?	must I be fly-fishing? must you be fly-fishing? must he be fly-fishing? must we be fly-fishing? must you be fly-fishing? must they be fly-fishing?
Perfect	V-ing perfect
must I have fly-fished? must you have fly-fished? must he have fly-fished? must we have fly-fished? must you have fly-fished? must they have fly-fished?	must I have been fly-fishing? must you have been fly-fishing? must he have been fly-fishing? must we have been fly-fishing? must you have been fly-fishing? must they have been fly-fishing?

Interro-negative form

Simple form	V-ing form
must I not fly-fish? must you not fly-fish? must he not fly-fish? must we not fly-fish? must you not fly-fish? must they not fly-fish?	must I not be fly-fishing? must you not be fly-fishing? must he not be fly-fishing? must we not be fly-fishing? must you not be fly-fishing? must they not be fly-fishing?
Perfect	V-ing perfect
must I not have fly-fished? must you not have fly-fished? must he not have fly-fished? must we not have fly-fished? must you not have fly-fished? must they not have fly-fished?	must I not have been fly-fishing? must you not have been fly-fishing? must he not have been fly-fishing? must we not have been fly-fishing? must you not have been fly-fishing? must they not have been fly-fishing?