Conjugação do verbo inglês
COULD BACKDATE

Verbo regular: backdate - backdated - backdated

Afirmação

Forma simple	Forma com V-ing
I could backdate you could backdate she could backdate we could backdate you could backdate they could backdate	I could be backdating you could be backdating she could be backdating we could be backdating you could be backdating they could be backdating
Perfeito	Perfeito com V-ing
I could have backdated you could have backdated she could have backdated we could have backdated you could have backdated they could have backdated	I could have been backdating you could have been backdating she could have been backdating we could have been backdating you could have been backdating they could have been backdating

Negação

Forma simple	Forma com V-ing
I could not backdate you could not backdate she could not backdate we could not backdate you could not backdate they could not backdate	I could not be backdating you could not be backdating she could not be backdating we could not be backdating you could not be backdating they could not be backdating
Perfeito	Perfeito com V-ing
I could not have backdated you could not have backdated she could not have backdated we could not have backdated you could not have backdated they could not have backdated	I could not have been backdating you could not have been backdating she could not have been backdating we could not have been backdating you could not have been backdating they could not have been backdating

Forma interrogativa

Forma simple	Forma com V-ing
could I backdate? could you backdate? could she backdate? could we backdate? could you backdate? could they backdate?	could I be backdating? could you be backdating? could she be backdating? could we be backdating? could you be backdating? could they be backdating?
Perfeito	Perfeito com V-ing
could I have backdated? could you have backdated? could she have backdated? could we have backdated? could you have backdated? could they have backdated?	could I have been backdating? could you have been backdating? could she have been backdating? could we have been backdating? could you have been backdating? could they have been backdating?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not backdate? could you not backdate? could she not backdate? could we not backdate? could you not backdate? could they not backdate?	could I not be backdating? could you not be backdating? could she not be backdating? could we not be backdating? could you not be backdating? could they not be backdating?
Perfeito	Perfeito com V-ing
could I not have backdated? could you not have backdated? could she not have backdated? could we not have backdated? could you not have backdated? could they not have backdated?	could I not have been backdating? could you not have been backdating? could she not have been backdating? could we not have been backdating? could you not have been backdating? could they not have been backdating?