English verb conjugation
MUST PHILTER

Regular verb: philter - philtered - philtered

Affirmation

Simple form	V-ing form
I must philter you must philter he must philter we must philter you must philter they must philter	I must be philtering you must be philtering he must be philtering we must be philtering you must be philtering they must be philtering
Perfect	V-ing perfect
I must have philtered you must have philtered he must have philtered we must have philtered you must have philtered they must have philtered	I must have been philtering you must have been philtering he must have been philtering we must have been philtering you must have been philtering they must have been philtering

Negation

Simple form	V-ing form
I must not philter you must not philter he must not philter we must not philter you must not philter they must not philter	I must not be philtering you must not be philtering he must not be philtering we must not be philtering you must not be philtering they must not be philtering
Perfect	V-ing perfect
I must not have philtered you must not have philtered he must not have philtered we must not have philtered you must not have philtered they must not have philtered	I must not have been philtering you must not have been philtering he must not have been philtering we must not have been philtering you must not have been philtering they must not have been philtering

Interrogative form

Simple form	V-ing form
must I philter? must you philter? must he philter? must we philter? must you philter? must they philter?	must I be philtering? must you be philtering? must he be philtering? must we be philtering? must you be philtering? must they be philtering?
Perfect	V-ing perfect
must I have philtered? must you have philtered? must he have philtered? must we have philtered? must you have philtered? must they have philtered?	must I have been philtering? must you have been philtering? must he have been philtering? must we have been philtering? must you have been philtering? must they have been philtering?

Interro-negative form

Simple form	V-ing form
must I not philter? must you not philter? must he not philter? must we not philter? must you not philter? must they not philter?	must I not be philtering? must you not be philtering? must he not be philtering? must we not be philtering? must you not be philtering? must they not be philtering?
Perfect	V-ing perfect
must I not have philtered? must you not have philtered? must he not have philtered? must we not have philtered? must you not have philtered? must they not have philtered?	must I not have been philtering? must you not have been philtering? must he not have been philtering? must we not have been philtering? must you not have been philtering? must they not have been philtering?