I could article you could article she could article we could article you could article they could article
Forma con V-ing
I could be articling you could be articling she could be articling we could be articling you could be articling they could be articling
Perfecto
I could have articled you could have articled she could have articled we could have articled you could have articled they could have articled
Perfecto con V-ing
I could have been articling you could have been articling she could have been articling we could have been articling you could have been articling they could have been articling
Negación
Forma simple
I couldn't article you couldn't article she couldn't article we couldn't article you couldn't article they couldn't article
Forma con V-ing
I couldn't be articling you couldn't be articling she couldn't be articling we couldn't be articling you couldn't be articling they couldn't be articling
Perfecto
I couldn't have articled you couldn't have articled she couldn't have articled we couldn't have articled you couldn't have articled they couldn't have articled
Perfecto con V-ing
I couldn't have been articling you couldn't have been articling she couldn't have been articling we couldn't have been articling you couldn't have been articling they couldn't have been articling
Forma interrogativa
Forma simple
could I article? could you article? could she article? could we article? could you article? could they article?
Forma con V-ing
could I be articling? could you be articling? could she be articling? could we be articling? could you be articling? could they be articling?
Perfecto
could I have articled? could you have articled? could she have articled? could we have articled? could you have articled? could they have articled?
Perfecto con V-ing
could I have been articling? could you have been articling? could she have been articling? could we have been articling? could you have been articling? could they have been articling?
Forma interro-negativa
Forma simple
couldn't I article? couldn't you article? couldn't she article? couldn't we article? couldn't you article? couldn't they article?
Forma con V-ing
couldn't I be articling? couldn't you be articling? couldn't she be articling? couldn't we be articling? couldn't you be articling? couldn't they be articling?
Perfecto
couldn't I have articled? couldn't you have articled? couldn't she have articled? couldn't we have articled? couldn't you have articled? couldn't they have articled?
Perfecto con V-ing
couldn't I have been articling? couldn't you have been articling? couldn't she have been articling? couldn't we have been articling? couldn't you have been articling? couldn't they have been articling?