could fast
Verbe régulier : fast - fasted- fasted
Traduction française : jeûner - rester à jeun 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could fast
you could fast
she could fast
we could fast
you could fast
they could fast 	I could be fasting
you could be fasting
she could be fasting
we could be fasting
you could be fasting
they could be fasting	I could have fasted
you could have fasted
she could have fasted
we could have fasted
you could have fasted
they could have fasted	I could have been fasting
you could have been fasting
she could have been fasting
we could have been fasting
you could have been fasting
they could have been fasting	

Négation 	
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I couldn't fast
you couldn't fast
she couldn't fast
we couldn't fast
you couldn't fast
they couldn't fast 	I couldn't be fasting
you couldn't be fasting
she couldn't be fasting
we couldn't be fasting
you couldn't be fasting
they couldn't be fasting	I couldn't have fasted
you couldn't have fasted
she couldn't have fasted
we couldn't have fasted
you couldn't have fasted
they couldn't have fasted	I couldn't have been fasting
you couldn't have been fasting
she couldn't have been fasting
we couldn't have been fasting
you couldn't have been fasting
they couldn't have been fasting	

Forme interrogative 	
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could I fast?
could you fast?
could she fast?
could we fast?
could you fast?
could they fast? 	could I be fasting?
could you be fasting?
could she be fasting?
could we be fasting?
could you be fasting?
could they be fasting? 	could I have fasted?
could you have fasted?
could she have fasted?
could we have fasted?
could you have fasted?
could they have fasted? 	could I have been fasting?
could you have been fasting?
could she have been fasting?
could we have been fasting?
could you have been fasting?
could they have been fasting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I fast?
couldn't you fast?
couldn't she fast?
couldn't we fast?
couldn't you fast?
couldn't they fast? 	couldn't I be fasting?
couldn't you be fasting?
couldn't she be fasting?
couldn't we be fasting?
couldn't you be fasting?
couldn't they be fasting? 	couldn't I have fasted?
couldn't you have fasted?
couldn't she have fasted?
couldn't we have fasted?
couldn't you have fasted?
couldn't they have fasted? 	couldn't I have been fasting?
couldn't you have been fasting?
couldn't she have been fasting?
couldn't we have been fasting?
couldn't you have been fasting?
couldn't they have been fasting?