Conjugación del verbo inglés COULD CONTRIBUTE
Verbo regular: contribute - contributed - contributed
Afirmación
Forma simple
I could contributeyou could contribute
he could contribute
we could contribute
you could contribute
they could contribute
Forma con V-ing
I could be contributingyou could be contributing
he could be contributing
we could be contributing
you could be contributing
they could be contributing
Perfecto
I could have contributedyou could have contributed
he could have contributed
we could have contributed
you could have contributed
they could have contributed
Perfecto con V-ing
I could have been contributingyou could have been contributing
he could have been contributing
we could have been contributing
you could have been contributing
they could have been contributing
Negación
Forma simple
I couldn't contributeyou couldn't contribute
he couldn't contribute
we couldn't contribute
you couldn't contribute
they couldn't contribute
Forma con V-ing
I couldn't be contributingyou couldn't be contributing
he couldn't be contributing
we couldn't be contributing
you couldn't be contributing
they couldn't be contributing
Perfecto
I couldn't have contributedyou couldn't have contributed
he couldn't have contributed
we couldn't have contributed
you couldn't have contributed
they couldn't have contributed
Perfecto con V-ing
I couldn't have been contributingyou couldn't have been contributing
he couldn't have been contributing
we couldn't have been contributing
you couldn't have been contributing
they couldn't have been contributing
Forma interrogativa
Forma simple
could I contribute?could you contribute?
could he contribute?
could we contribute?
could you contribute?
could they contribute?
Forma con V-ing
could I be contributing?could you be contributing?
could he be contributing?
could we be contributing?
could you be contributing?
could they be contributing?
Perfecto
could I have contributed?could you have contributed?
could he have contributed?
could we have contributed?
could you have contributed?
could they have contributed?
Perfecto con V-ing
could I have been contributing?could you have been contributing?
could he have been contributing?
could we have been contributing?
could you have been contributing?
could they have been contributing?
Forma interro-negativa
Forma simple
couldn't I contribute?couldn't you contribute?
couldn't he contribute?
couldn't we contribute?
couldn't you contribute?
couldn't they contribute?
Forma con V-ing
couldn't I be contributing?couldn't you be contributing?
couldn't he be contributing?
couldn't we be contributing?
couldn't you be contributing?
couldn't they be contributing?
Perfecto
couldn't I have contributed?couldn't you have contributed?
couldn't he have contributed?
couldn't we have contributed?
couldn't you have contributed?
couldn't they have contributed?
Perfecto con V-ing
couldn't I have been contributing?couldn't you have been contributing?
couldn't he have been contributing?
couldn't we have been contributing?
couldn't you have been contributing?
couldn't they have been contributing?