Conjugación del verbo inglés COULD UNDERPIN
Verbo regular: underpin - underpinned - underpinned
Afirmación
Forma simple
I could underpinyou could underpin
he could underpin
we could underpin
you could underpin
they could underpin
Forma con V-ing
I could be underpinningyou could be underpinning
he could be underpinning
we could be underpinning
you could be underpinning
they could be underpinning
Perfecto
I could have underpinnedyou could have underpinned
he could have underpinned
we could have underpinned
you could have underpinned
they could have underpinned
Perfecto con V-ing
I could have been underpinningyou could have been underpinning
he could have been underpinning
we could have been underpinning
you could have been underpinning
they could have been underpinning
Negación
Forma simple
I couldn't underpinyou couldn't underpin
he couldn't underpin
we couldn't underpin
you couldn't underpin
they couldn't underpin
Forma con V-ing
I couldn't be underpinningyou couldn't be underpinning
he couldn't be underpinning
we couldn't be underpinning
you couldn't be underpinning
they couldn't be underpinning
Perfecto
I couldn't have underpinnedyou couldn't have underpinned
he couldn't have underpinned
we couldn't have underpinned
you couldn't have underpinned
they couldn't have underpinned
Perfecto con V-ing
I couldn't have been underpinningyou couldn't have been underpinning
he couldn't have been underpinning
we couldn't have been underpinning
you couldn't have been underpinning
they couldn't have been underpinning
Forma interrogativa
Forma simple
could I underpin?could you underpin?
could he underpin?
could we underpin?
could you underpin?
could they underpin?
Forma con V-ing
could I be underpinning?could you be underpinning?
could he be underpinning?
could we be underpinning?
could you be underpinning?
could they be underpinning?
Perfecto
could I have underpinned?could you have underpinned?
could he have underpinned?
could we have underpinned?
could you have underpinned?
could they have underpinned?
Perfecto con V-ing
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?
Forma interro-negativa
Forma simple
couldn't I underpin?couldn't you underpin?
couldn't he underpin?
couldn't we underpin?
couldn't you underpin?
couldn't they underpin?
Forma con V-ing
couldn't I be underpinning?couldn't you be underpinning?
couldn't he be underpinning?
couldn't we be underpinning?
couldn't you be underpinning?
couldn't they be underpinning?
Perfecto
couldn't I have underpinned?couldn't you have underpinned?
couldn't he have underpinned?
couldn't we have underpinned?
couldn't you have underpinned?
couldn't they have underpinned?
Perfecto con V-ing
couldn't I have been underpinning?couldn't you have been underpinning?
couldn't he have been underpinning?
couldn't we have been underpinning?
couldn't you have been underpinning?
couldn't they have been underpinning?