could underpin
Regelmä&szlig;iges Verb: underpin - underpinned- underpinned

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could underpin
you could underpin
she could underpin
we could underpin
you could underpin
they could underpin 	I could be underpinning
you could be underpinning
she could be underpinning
we could be underpinning
you could be underpinning
they could be underpinning	I could have underpinned
you could have underpinned
she 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
she could have been underpinning
we could have been underpinning
you could have been underpinning
they could have been underpinning	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not underpin
you could not underpin
she 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
she could not be underpinning
we could not be underpinning
you could not be underpinning
they could not be underpinning	I could not have underpinned
you could not have underpinned
she 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
she could not have been underpinning
we could not have been underpinning
you could not have been underpinning
they could not have been underpinning	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I underpin?
could you underpin?
could she underpin?
could we underpin?
could you underpin?
could they underpin? 	could I be underpinning?
could you be underpinning?
could she be underpinning?
could we be underpinning?
could you be underpinning?
could they be underpinning? 	could I have underpinned?
could you have underpinned?
could she 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 she have been underpinning?
could we have been underpinning?
could you have been underpinning?
could they have been underpinning? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not underpin?
could you not underpin?
could she 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 she not be underpinning?
could we not be underpinning?
could you not be underpinning?
could they not be underpinning? 	could I not have underpinned?
could you not have underpinned?
could she 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 she not have been underpinning?
could we not have been underpinning?
could you not have been underpinning?
could they not have been underpinning?