Conjugação do verbo inglês
COULD TEST

Verbo regular: test - tested - tested

Afirmação

Forma simple	Forma com V-ing
I could test you could test he could test we could test you could test they could test	I could be testing you could be testing he could be testing we could be testing you could be testing they could be testing
Perfeito	Perfeito com V-ing
I could have tested you could have tested he could have tested we could have tested you could have tested they could have tested	I could have been testing you could have been testing he could have been testing we could have been testing you could have been testing they could have been testing

Negação

Forma simple	Forma com V-ing
I couldn't test you couldn't test he couldn't test we couldn't test you couldn't test they couldn't test	I couldn't be testing you couldn't be testing he couldn't be testing we couldn't be testing you couldn't be testing they couldn't be testing
Perfeito	Perfeito com V-ing
I couldn't have tested you couldn't have tested he couldn't have tested we couldn't have tested you couldn't have tested they couldn't have tested	I couldn't have been testing you couldn't have been testing he couldn't have been testing we couldn't have been testing you couldn't have been testing they couldn't have been testing

Forma interrogativa

Forma simple	Forma com V-ing
could I test? could you test? could he test? could we test? could you test? could they test?	could I be testing? could you be testing? could he be testing? could we be testing? could you be testing? could they be testing?
Perfeito	Perfeito com V-ing
could I have tested? could you have tested? could he have tested? could we have tested? could you have tested? could they have tested?	could I have been testing? could you have been testing? could he have been testing? could we have been testing? could you have been testing? could they have been testing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I test? couldn't you test? couldn't he test? couldn't we test? couldn't you test? couldn't they test?	couldn't I be testing? couldn't you be testing? couldn't he be testing? couldn't we be testing? couldn't you be testing? couldn't they be testing?
Perfeito	Perfeito com V-ing
couldn't I have tested? couldn't you have tested? couldn't he have tested? couldn't we have tested? couldn't you have tested? couldn't they have tested?	couldn't I have been testing? couldn't you have been testing? couldn't he have been testing? couldn't we have been testing? couldn't you have been testing? couldn't they have been testing?