Conjugación del verbo inglés
COULD FRAY

Verbo regular: fray - frayed - frayed

Afirmación

Forma simple	Forma con V-ing
I could fray you could fray he could fray we could fray you could fray they could fray	I could be fraying you could be fraying he could be fraying we could be fraying you could be fraying they could be fraying
Perfecto	Perfecto con V-ing
I could have frayed you could have frayed he could have frayed we could have frayed you could have frayed they could have frayed	I could have been fraying you could have been fraying he could have been fraying we could have been fraying you could have been fraying they could have been fraying

Negación

Forma simple	Forma con V-ing
I couldn't fray you couldn't fray he couldn't fray we couldn't fray you couldn't fray they couldn't fray	I couldn't be fraying you couldn't be fraying he couldn't be fraying we couldn't be fraying you couldn't be fraying they couldn't be fraying
Perfecto	Perfecto con V-ing
I couldn't have frayed you couldn't have frayed he couldn't have frayed we couldn't have frayed you couldn't have frayed they couldn't have frayed	I couldn't have been fraying you couldn't have been fraying he 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	Forma con V-ing
could I fray? could you fray? could he fray? could we fray? could you fray? could they fray?	could I be fraying? could you be fraying? could he be fraying? could we be fraying? could you be fraying? could they be fraying?
Perfecto	Perfecto con V-ing
could I have frayed? could you have frayed? could he have frayed? could we have frayed? could you have frayed? could they have frayed?	could I have been fraying? could you have been fraying? could he have been fraying? could we have been fraying? could you have been fraying? could they have been fraying?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I fray? couldn't you fray? couldn't he fray? couldn't we fray? couldn't you fray? couldn't they fray?	couldn't I be fraying? couldn't you be fraying? couldn't he be fraying? couldn't we be fraying? couldn't you be fraying? couldn't they be fraying?
Perfecto	Perfecto con V-ing
couldn't I have frayed? couldn't you have frayed? couldn't he have frayed? couldn't we have frayed? couldn't you have frayed? couldn't they have frayed?	couldn't I have been fraying? couldn't you have been fraying? couldn't he have been fraying? couldn't we have been fraying? couldn't you have been fraying? couldn't they have been fraying?