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 mustn't flatter
you mustn't flatter
she mustn't flatter
we mustn't flatter
you mustn't flatter
they mustn't flatter 	I mustn't be flattering
you mustn't be flattering
she mustn't be flattering
we mustn't be flattering
you mustn't be flattering
they mustn't be flattering	I mustn't have flattered
you mustn't have flattered
she mustn't have flattered
we mustn't have flattered
you mustn't have flattered
they mustn't have flattered	I mustn't have been flattering
you mustn't have been flattering
she mustn't have been flattering
we mustn't have been flattering
you mustn't have been flattering
they mustn't 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 	
mustn't I flatter?
mustn't you flatter?
mustn't she flatter?
mustn't we flatter?
mustn't you flatter?
mustn't they flatter? 	mustn't I be flattering?
mustn't you be flattering?
mustn't she be flattering?
mustn't we be flattering?
mustn't you be flattering?
mustn't they be flattering? 	mustn't I have flattered?
mustn't you have flattered?
mustn't she have flattered?
mustn't we have flattered?
mustn't you have flattered?
mustn't they have flattered? 	mustn't I have been flattering?
mustn't you have been flattering?
mustn't she have been flattering?
mustn't we have been flattering?
mustn't you have been flattering?
mustn't they have been flattering?