Conjugaison du verbe anglais
COULD UNDERPIN

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

Affirmation

Forme simple	Forme en V-ing
I could underpin you could underpin he could underpin we could underpin you could underpin they could underpin	I could be underpinning you could be underpinning he could be underpinning we could be underpinning you could be underpinning they could be underpinning
Perfect	Perfect en V-ing
I could have underpinned you could have underpinned he could have underpinned we could have underpinned you could have underpinned they could have underpinned	I could have been underpinning you could have been underpinning he could have been underpinning we could have been underpinning you could have been underpinning they could have been underpinning

Négation

Forme simple	Forme en V-ing
I could not underpin you could not underpin he could not underpin we could not underpin you could not underpin they could not underpin	I could not be underpinning you could not be underpinning he could not be underpinning we could not be underpinning you could not be underpinning they could not be underpinning
Perfect	Perfect en V-ing
I could not have underpinned you could not have underpinned he could not have underpinned we could not have underpinned you could not have underpinned they could not have underpinned	I could not have been underpinning you could not have been underpinning he could not have been underpinning we could not have been underpinning you could not have been underpinning they could not have been underpinning

Forme interrogative

Forme simple	Forme en V-ing
could I underpin? could you underpin? could he underpin? could we underpin? could you underpin? could they underpin?	could I be underpinning? could you be underpinning? could he be underpinning? could we be underpinning? could you be underpinning? could they be underpinning?
Perfect	Perfect en V-ing
could I have underpinned? could you have underpinned? could he have underpinned? could we have underpinned? could you have underpinned? could they have underpinned?	could I have been underpinning? could you have been underpinning? could he have been underpinning? could we have been underpinning? could you have been underpinning? could they have been underpinning?

Forme interro-négative

Forme simple	Forme en V-ing
could I not underpin? could you not underpin? could he not underpin? could we not underpin? could you not underpin? could they not underpin?	could I not be underpinning? could you not be underpinning? could he not be underpinning? could we not be underpinning? could you not be underpinning? could they not be underpinning?
Perfect	Perfect en V-ing
could I not have underpinned? could you not have underpinned? could he not have underpinned? could we not have underpinned? could you not have underpinned? could they not have underpinned?	could I not have been underpinning? could you not have been underpinning? could he not have been underpinning? could we not have been underpinning? could you not have been underpinning? could they not have been underpinning?