I can compute you can compute she can compute we can compute you can compute they can compute
Forma con V-ing
I can be computing you can be computing she can be computing we can be computing you can be computing they can be computing
Perfecto
I can have computed you can have computed she can have computed we can have computed you can have computed they can have computed
Perfecto con V-ing
I can have been computing you can have been computing she can have been computing we can have been computing you can have been computing they can have been computing
Negación
Forma simple
I can't compute you can't compute she can't compute we can't compute you can't compute they can't compute
Forma con V-ing
I can't be computing you can't be computing she can't be computing we can't be computing you can't be computing they can't be computing
Perfecto
I can't have computed you can't have computed she can't have computed we can't have computed you can't have computed they can't have computed
Perfecto con V-ing
I can't have been computing you can't have been computing she can't have been computing we can't have been computing you can't have been computing they can't have been computing
Forma interrogativa
Forma simple
can I compute? can you compute? can she compute? can we compute? can you compute? can they compute?
Forma con V-ing
can I be computing? can you be computing? can she be computing? can we be computing? can you be computing? can they be computing?
Perfecto
can I have computed? can you have computed? can she have computed? can we have computed? can you have computed? can they have computed?
Perfecto con V-ing
can I have been computing? can you have been computing? can she have been computing? can we have been computing? can you have been computing? can they have been computing?
Forma interro-negativa
Forma simple
can't I compute? can't you compute? can't she compute? can't we compute? can't you compute? can't they compute?
Forma con V-ing
can't I be computing? can't you be computing? can't she be computing? can't we be computing? can't you be computing? can't they be computing?
Perfecto
can't I have computed? can't you have computed? can't she have computed? can't we have computed? can't you have computed? can't they have computed?
Perfecto con V-ing
can't I have been computing? can't you have been computing? can't she have been computing? can't we have been computing? can't you have been computing? can't they have been computing?