must repay
Irregular verb: repay - repaid- repaid

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must repay
you must repay
she must repay
we must repay
you must repay
they must repay 	I must be repaying
you must be repaying
she must be repaying
we must be repaying
you must be repaying
they must be repaying	I must have repaid
you must have repaid
she must have repaid
we must have repaid
you must have repaid
they must have repaid	I must have been repaying
you must have been repaying
she must have been repaying
we must have been repaying
you must have been repaying
they must have been repaying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't repay
you mustn't repay
she mustn't repay
we mustn't repay
you mustn't repay
they mustn't repay 	I mustn't be repaying
you mustn't be repaying
she mustn't be repaying
we mustn't be repaying
you mustn't be repaying
they mustn't be repaying	I mustn't have repaid
you mustn't have repaid
she mustn't have repaid
we mustn't have repaid
you mustn't have repaid
they mustn't have repaid	I mustn't have been repaying
you mustn't have been repaying
she mustn't have been repaying
we mustn't have been repaying
you mustn't have been repaying
they mustn't have been repaying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I repay?
must you repay?
must she repay?
must we repay?
must you repay?
must they repay? 	must I be repaying?
must you be repaying?
must she be repaying?
must we be repaying?
must you be repaying?
must they be repaying? 	must I have repaid?
must you have repaid?
must she have repaid?
must we have repaid?
must you have repaid?
must they have repaid? 	must I have been repaying?
must you have been repaying?
must she have been repaying?
must we have been repaying?
must you have been repaying?
must they have been repaying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I repay?
mustn't you repay?
mustn't she repay?
mustn't we repay?
mustn't you repay?
mustn't they repay? 	mustn't I be repaying?
mustn't you be repaying?
mustn't she be repaying?
mustn't we be repaying?
mustn't you be repaying?
mustn't they be repaying? 	mustn't I have repaid?
mustn't you have repaid?
mustn't she have repaid?
mustn't we have repaid?
mustn't you have repaid?
mustn't they have repaid? 	mustn't I have been repaying?
mustn't you have been repaying?
mustn't she have been repaying?
mustn't we have been repaying?
mustn't you have been repaying?
mustn't they have been repaying?