could carbon-date
Verbe régulier : carbon-date - carbon-dated- carbon-dated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could carbon-date
you could carbon-date
he could carbon-date
we could carbon-date
you could carbon-date
they could carbon-date 	I could be carbon-dating
you could be carbon-dating
he could be carbon-dating
we could be carbon-dating
you could be carbon-dating
they could be carbon-dating	I could have carbon-dated
you could have carbon-dated
he could have carbon-dated
we could have carbon-dated
you could have carbon-dated
they could have carbon-dated	I could have been carbon-dating
you could have been carbon-dating
he could have been carbon-dating
we could have been carbon-dating
you could have been carbon-dating
they could have been carbon-dating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't carbon-date
you couldn't carbon-date
he couldn't carbon-date
we couldn't carbon-date
you couldn't carbon-date
they couldn't carbon-date 	I couldn't be carbon-dating
you couldn't be carbon-dating
he couldn't be carbon-dating
we couldn't be carbon-dating
you couldn't be carbon-dating
they couldn't be carbon-dating	I couldn't have carbon-dated
you couldn't have carbon-dated
he couldn't have carbon-dated
we couldn't have carbon-dated
you couldn't have carbon-dated
they couldn't have carbon-dated	I couldn't have been carbon-dating
you couldn't have been carbon-dating
he couldn't have been carbon-dating
we couldn't have been carbon-dating
you couldn't have been carbon-dating
they couldn't have been carbon-dating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I carbon-date?
could you carbon-date?
could he carbon-date?
could we carbon-date?
could you carbon-date?
could they carbon-date? 	could I be carbon-dating?
could you be carbon-dating?
could he be carbon-dating?
could we be carbon-dating?
could you be carbon-dating?
could they be carbon-dating? 	could I have carbon-dated?
could you have carbon-dated?
could he have carbon-dated?
could we have carbon-dated?
could you have carbon-dated?
could they have carbon-dated? 	could I have been carbon-dating?
could you have been carbon-dating?
could he have been carbon-dating?
could we have been carbon-dating?
could you have been carbon-dating?
could they have been carbon-dating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I carbon-date?
couldn't you carbon-date?
couldn't he carbon-date?
couldn't we carbon-date?
couldn't you carbon-date?
couldn't they carbon-date? 	couldn't I be carbon-dating?
couldn't you be carbon-dating?
couldn't he be carbon-dating?
couldn't we be carbon-dating?
couldn't you be carbon-dating?
couldn't they be carbon-dating? 	couldn't I have carbon-dated?
couldn't you have carbon-dated?
couldn't he have carbon-dated?
couldn't we have carbon-dated?
couldn't you have carbon-dated?
couldn't they have carbon-dated? 	couldn't I have been carbon-dating?
couldn't you have been carbon-dating?
couldn't he have been carbon-dating?
couldn't we have been carbon-dating?
couldn't you have been carbon-dating?
couldn't they have been carbon-dating?