may underpin
Verbe régulier : underpin - underpinned- underpinned
Traduction française : soutenir - étayer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may underpin
you may underpin
she may underpin
we may underpin
you may underpin
they may underpin 	I may be underpinning
you may be underpinning
she may be underpinning
we may be underpinning
you may be underpinning
they may be underpinning	I may have underpinned
you may have underpinned
she may have underpinned
we may have underpinned
you may have underpinned
they may have underpinned	I may have been underpinning
you may have been underpinning
she may have been underpinning
we may have been underpinning
you may have been underpinning
they may have been underpinning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mayn't underpin
you mayn't underpin
she mayn't underpin
we mayn't underpin
you mayn't underpin
they mayn't underpin 	I mayn't be underpinning
you mayn't be underpinning
she mayn't be underpinning
we mayn't be underpinning
you mayn't be underpinning
they mayn't be underpinning	I mayn't have underpinned
you mayn't have underpinned
she mayn't have underpinned
we mayn't have underpinned
you mayn't have underpinned
they mayn't have underpinned	I mayn't have been underpinning
you mayn't have been underpinning
she mayn't have been underpinning
we mayn't have been underpinning
you mayn't have been underpinning
they mayn't have been underpinning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I underpin?
may you underpin?
may she underpin?
may we underpin?
may you underpin?
may they underpin? 	may I be underpinning?
may you be underpinning?
may she be underpinning?
may we be underpinning?
may you be underpinning?
may they be underpinning? 	may I have underpinned?
may you have underpinned?
may she have underpinned?
may we have underpinned?
may you have underpinned?
may they have underpinned? 	may I have been underpinning?
may you have been underpinning?
may she have been underpinning?
may we have been underpinning?
may you have been underpinning?
may they have been underpinning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mayn't I underpin?
mayn't you underpin?
mayn't she underpin?
mayn't we underpin?
mayn't you underpin?
mayn't they underpin? 	mayn't I be underpinning?
mayn't you be underpinning?
mayn't she be underpinning?
mayn't we be underpinning?
mayn't you be underpinning?
mayn't they be underpinning? 	mayn't I have underpinned?
mayn't you have underpinned?
mayn't she have underpinned?
mayn't we have underpinned?
mayn't you have underpinned?
mayn't they have underpinned? 	mayn't I have been underpinning?
mayn't you have been underpinning?
mayn't she have been underpinning?
mayn't we have been underpinning?
mayn't you have been underpinning?
mayn't they have been underpinning?