The Conjugator
Conjugação do verbo inglês
COULD CONTRIBUTE

Verbo regular: contribute - contributed - contributed

Afirmação

Forma simple

Forma com V-ing

I could contribute
you could contribute
he could contribute
we could contribute
you could contribute
they could contribute
I could be contributing
you could be contributing
he could be contributing
we could be contributing
you could be contributing
they could be contributing

Perfeito

Perfeito com V-ing

I could have contributed
you could have contributed
he could have contributed
we could have contributed
you could have contributed
they could have contributed
I could have been contributing
you could have been contributing
he could have been contributing
we could have been contributing
you could have been contributing
they could have been contributing

Negação

Forma simple

Forma com V-ing

I couldn't contribute
you couldn't contribute
he couldn't contribute
we couldn't contribute
you couldn't contribute
they couldn't contribute
I couldn't be contributing
you couldn't be contributing
he couldn't be contributing
we couldn't be contributing
you couldn't be contributing
they couldn't be contributing

Perfeito

Perfeito com V-ing

I couldn't have contributed
you couldn't have contributed
he couldn't have contributed
we couldn't have contributed
you couldn't have contributed
they couldn't have contributed
I couldn't have been contributing
you 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

Forma com V-ing

could I contribute?
could you contribute?
could he contribute?
could we contribute?
could you contribute?
could they contribute?
could I be contributing?
could you be contributing?
could he be contributing?
could we be contributing?
could you be contributing?
could they be contributing?

Perfeito

Perfeito com V-ing

could I have contributed?
could you have contributed?
could he have contributed?
could we have contributed?
could you have contributed?
could they have contributed?
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-Negação

Forma simple

Forma com V-ing

couldn't I contribute?
couldn't you contribute?
couldn't he contribute?
couldn't we contribute?
couldn't you contribute?
couldn't they contribute?
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?

Perfeito

Perfeito com V-ing

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?
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?