could preheat
Verbe régulier : preheat - preheated- preheated
Traduction française : préchauffer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could preheat
you could preheat
he could preheat
we could preheat
you could preheat
they could preheat 	I could be preheating
you could be preheating
he could be preheating
we could be preheating
you could be preheating
they could be preheating	I could have preheated
you could have preheated
he could have preheated
we could have preheated
you could have preheated
they could have preheated	I could have been preheating
you could have been preheating
he could have been preheating
we could have been preheating
you could have been preheating
they could have been preheating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't preheat
you couldn't preheat
he couldn't preheat
we couldn't preheat
you couldn't preheat
they couldn't preheat 	I couldn't be preheating
you couldn't be preheating
he couldn't be preheating
we couldn't be preheating
you couldn't be preheating
they couldn't be preheating	I couldn't have preheated
you couldn't have preheated
he couldn't have preheated
we couldn't have preheated
you couldn't have preheated
they couldn't have preheated	I couldn't have been preheating
you couldn't have been preheating
he couldn't have been preheating
we couldn't have been preheating
you couldn't have been preheating
they couldn't have been preheating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I preheat?
could you preheat?
could he preheat?
could we preheat?
could you preheat?
could they preheat? 	could I be preheating?
could you be preheating?
could he be preheating?
could we be preheating?
could you be preheating?
could they be preheating? 	could I have preheated?
could you have preheated?
could he have preheated?
could we have preheated?
could you have preheated?
could they have preheated? 	could I have been preheating?
could you have been preheating?
could he have been preheating?
could we have been preheating?
could you have been preheating?
could they have been preheating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I preheat?
couldn't you preheat?
couldn't he preheat?
couldn't we preheat?
couldn't you preheat?
couldn't they preheat? 	couldn't I be preheating?
couldn't you be preheating?
couldn't he be preheating?
couldn't we be preheating?
couldn't you be preheating?
couldn't they be preheating? 	couldn't I have preheated?
couldn't you have preheated?
couldn't he have preheated?
couldn't we have preheated?
couldn't you have preheated?
couldn't they have preheated? 	couldn't I have been preheating?
couldn't you have been preheating?
couldn't he have been preheating?
couldn't we have been preheating?
couldn't you have been preheating?
couldn't they have been preheating?