must underpay
Verbe irrégulier : underpay - underpaid- underpaid
Traduction française : sous-payer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must underpay
you must underpay
she must underpay
we must underpay
you must underpay
they must underpay 	I must be underpaying
you must be underpaying
she must be underpaying
we must be underpaying
you must be underpaying
they must be underpaying	I must have underpaid
you must have underpaid
she must have underpaid
we must have underpaid
you must have underpaid
they must have underpaid	I must have been underpaying
you must have been underpaying
she must have been underpaying
we must have been underpaying
you must have been underpaying
they must have been underpaying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't underpay
you mustn't underpay
she mustn't underpay
we mustn't underpay
you mustn't underpay
they mustn't underpay 	I mustn't be underpaying
you mustn't be underpaying
she mustn't be underpaying
we mustn't be underpaying
you mustn't be underpaying
they mustn't be underpaying	I mustn't have underpaid
you mustn't have underpaid
she mustn't have underpaid
we mustn't have underpaid
you mustn't have underpaid
they mustn't have underpaid	I mustn't have been underpaying
you mustn't have been underpaying
she mustn't have been underpaying
we mustn't have been underpaying
you mustn't have been underpaying
they mustn't have been underpaying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I underpay?
must you underpay?
must she underpay?
must we underpay?
must you underpay?
must they underpay? 	must I be underpaying?
must you be underpaying?
must she be underpaying?
must we be underpaying?
must you be underpaying?
must they be underpaying? 	must I have underpaid?
must you have underpaid?
must she have underpaid?
must we have underpaid?
must you have underpaid?
must they have underpaid? 	must I have been underpaying?
must you have been underpaying?
must she have been underpaying?
must we have been underpaying?
must you have been underpaying?
must they have been underpaying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I underpay?
mustn't you underpay?
mustn't she underpay?
mustn't we underpay?
mustn't you underpay?
mustn't they underpay? 	mustn't I be underpaying?
mustn't you be underpaying?
mustn't she be underpaying?
mustn't we be underpaying?
mustn't you be underpaying?
mustn't they be underpaying? 	mustn't I have underpaid?
mustn't you have underpaid?
mustn't she have underpaid?
mustn't we have underpaid?
mustn't you have underpaid?
mustn't they have underpaid? 	mustn't I have been underpaying?
mustn't you have been underpaying?
mustn't she have been underpaying?
mustn't we have been underpaying?
mustn't you have been underpaying?
mustn't they have been underpaying?