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