Verbo regular: circulate - circulated - circulated
Afirmación
Forma simple
I could circulate you could circulate she could circulate we could circulate you could circulate they could circulate
Forma con V-ing
I could be circulating you could be circulating she could be circulating we could be circulating you could be circulating they could be circulating
Perfecto
I could have circulated you could have circulated she could have circulated we could have circulated you could have circulated they could have circulated
Perfecto con V-ing
I could have been circulating you could have been circulating she could have been circulating we could have been circulating you could have been circulating they could have been circulating
Negación
Forma simple
I couldn't circulate you couldn't circulate she couldn't circulate we couldn't circulate you couldn't circulate they couldn't circulate
Forma con V-ing
I couldn't be circulating you couldn't be circulating she couldn't be circulating we couldn't be circulating you couldn't be circulating they couldn't be circulating
Perfecto
I couldn't have circulated you couldn't have circulated she couldn't have circulated we couldn't have circulated you couldn't have circulated they couldn't have circulated
Perfecto con V-ing
I couldn't have been circulating you couldn't have been circulating she couldn't have been circulating we couldn't have been circulating you couldn't have been circulating they couldn't have been circulating
Forma interrogativa
Forma simple
could I circulate? could you circulate? could she circulate? could we circulate? could you circulate? could they circulate?
Forma con V-ing
could I be circulating? could you be circulating? could she be circulating? could we be circulating? could you be circulating? could they be circulating?
Perfecto
could I have circulated? could you have circulated? could she have circulated? could we have circulated? could you have circulated? could they have circulated?
Perfecto con V-ing
could I have been circulating? could you have been circulating? could she have been circulating? could we have been circulating? could you have been circulating? could they have been circulating?
Forma interro-negativa
Forma simple
couldn't I circulate? couldn't you circulate? couldn't she circulate? couldn't we circulate? couldn't you circulate? couldn't they circulate?
Forma con V-ing
couldn't I be circulating? couldn't you be circulating? couldn't she be circulating? couldn't we be circulating? couldn't you be circulating? couldn't they be circulating?
Perfecto
couldn't I have circulated? couldn't you have circulated? couldn't she have circulated? couldn't we have circulated? couldn't you have circulated? couldn't they have circulated?
Perfecto con V-ing
couldn't I have been circulating? couldn't you have been circulating? couldn't she have been circulating? couldn't we have been circulating? couldn't you have been circulating? couldn't they have been circulating?