must flatter
Regular verb: flatter - flattered- flattered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must flatter
you must flatter
she must flatter
we must flatter
you must flatter
they must flatter 	I must be flattering
you must be flattering
she must be flattering
we must be flattering
you must be flattering
they must be flattering	I must have flattered
you must have flattered
she must have flattered
we must have flattered
you must have flattered
they must have flattered	I must have been flattering
you must have been flattering
she must have been flattering
we must have been flattering
you must have been flattering
they must have been flattering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not flatter
you must not flatter
she must not flatter
we must not flatter
you must not flatter
they must not flatter 	I must not be flattering
you must not be flattering
she must not be flattering
we must not be flattering
you must not be flattering
they must not be flattering	I must not have flattered
you must not have flattered
she must not have flattered
we must not have flattered
you must not have flattered
they must not have flattered	I must not have been flattering
you must not have been flattering
she must not have been flattering
we must not have been flattering
you must not have been flattering
they must not have been flattering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I flatter?
must you flatter?
must she flatter?
must we flatter?
must you flatter?
must they flatter? 	must I be flattering?
must you be flattering?
must she be flattering?
must we be flattering?
must you be flattering?
must they be flattering? 	must I have flattered?
must you have flattered?
must she have flattered?
must we have flattered?
must you have flattered?
must they have flattered? 	must I have been flattering?
must you have been flattering?
must she have been flattering?
must we have been flattering?
must you have been flattering?
must they have been flattering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not flatter?
must you not flatter?
must she not flatter?
must we not flatter?
must you not flatter?
must they not flatter? 	must I not be flattering?
must you not be flattering?
must she not be flattering?
must we not be flattering?
must you not be flattering?
must they not be flattering? 	must I not have flattered?
must you not have flattered?
must she not have flattered?
must we not have flattered?
must you not have flattered?
must they not have flattered? 	must I not have been flattering?
must you not have been flattering?
must she not have been flattering?
must we not have been flattering?
must you not have been flattering?
must they not have been flattering?