could refasten
Verbe régulier : refasten - refastened- refastened

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could refasten
you could refasten
he could refasten
we could refasten
you could refasten
they could refasten 	I could be refastening
you could be refastening
he could be refastening
we could be refastening
you could be refastening
they could be refastening	I could have refastened
you could have refastened
he could have refastened
we could have refastened
you could have refastened
they could have refastened	I could have been refastening
you could have been refastening
he could have been refastening
we could have been refastening
you could have been refastening
they could have been refastening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't refasten
you couldn't refasten
he couldn't refasten
we couldn't refasten
you couldn't refasten
they couldn't refasten 	I couldn't be refastening
you couldn't be refastening
he couldn't be refastening
we couldn't be refastening
you couldn't be refastening
they couldn't be refastening	I couldn't have refastened
you couldn't have refastened
he couldn't have refastened
we couldn't have refastened
you couldn't have refastened
they couldn't have refastened	I couldn't have been refastening
you couldn't have been refastening
he couldn't have been refastening
we couldn't have been refastening
you couldn't have been refastening
they couldn't have been refastening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I refasten?
could you refasten?
could he refasten?
could we refasten?
could you refasten?
could they refasten? 	could I be refastening?
could you be refastening?
could he be refastening?
could we be refastening?
could you be refastening?
could they be refastening? 	could I have refastened?
could you have refastened?
could he have refastened?
could we have refastened?
could you have refastened?
could they have refastened? 	could I have been refastening?
could you have been refastening?
could he have been refastening?
could we have been refastening?
could you have been refastening?
could they have been refastening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I refasten?
couldn't you refasten?
couldn't he refasten?
couldn't we refasten?
couldn't you refasten?
couldn't they refasten? 	couldn't I be refastening?
couldn't you be refastening?
couldn't he be refastening?
couldn't we be refastening?
couldn't you be refastening?
couldn't they be refastening? 	couldn't I have refastened?
couldn't you have refastened?
couldn't he have refastened?
couldn't we have refastened?
couldn't you have refastened?
couldn't they have refastened? 	couldn't I have been refastening?
couldn't you have been refastening?
couldn't he have been refastening?
couldn't we have been refastening?
couldn't you have been refastening?
couldn't they have been refastening?