Conjugación del verbo inglés
COULD CREASE

Verbo regular: crease - creased - creased

Afirmación

Forma simple	Forma con V-ing
I could crease you could crease he could crease we could crease you could crease they could crease	I could be creasing you could be creasing he could be creasing we could be creasing you could be creasing they could be creasing
Perfecto	Perfecto con V-ing
I could have creased you could have creased he could have creased we could have creased you could have creased they could have creased	I could have been creasing you could have been creasing he could have been creasing we could have been creasing you could have been creasing they could have been creasing

Negación

Forma simple	Forma con V-ing
I couldn't crease you couldn't crease he couldn't crease we couldn't crease you couldn't crease they couldn't crease	I couldn't be creasing you couldn't be creasing he couldn't be creasing we couldn't be creasing you couldn't be creasing they couldn't be creasing
Perfecto	Perfecto con V-ing
I couldn't have creased you couldn't have creased he couldn't have creased we couldn't have creased you couldn't have creased they couldn't have creased	I couldn't have been creasing you couldn't have been creasing he couldn't have been creasing we couldn't have been creasing you couldn't have been creasing they couldn't have been creasing

Forma interrogativa

Forma simple	Forma con V-ing
could I crease? could you crease? could he crease? could we crease? could you crease? could they crease?	could I be creasing? could you be creasing? could he be creasing? could we be creasing? could you be creasing? could they be creasing?
Perfecto	Perfecto con V-ing
could I have creased? could you have creased? could he have creased? could we have creased? could you have creased? could they have creased?	could I have been creasing? could you have been creasing? could he have been creasing? could we have been creasing? could you have been creasing? could they have been creasing?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I crease? couldn't you crease? couldn't he crease? couldn't we crease? couldn't you crease? couldn't they crease?	couldn't I be creasing? couldn't you be creasing? couldn't he be creasing? couldn't we be creasing? couldn't you be creasing? couldn't they be creasing?
Perfecto	Perfecto con V-ing
couldn't I have creased? couldn't you have creased? couldn't he have creased? couldn't we have creased? couldn't you have creased? couldn't they have creased?	couldn't I have been creasing? couldn't you have been creasing? couldn't he have been creasing? couldn't we have been creasing? couldn't you have been creasing? couldn't they have been creasing?