could cross-fertilise
Verbe régulier : cross-fertilise - cross-fertilised- cross-fertilised
Traduction française : (UK) croiser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could cross-fertilise
you could cross-fertilise
she could cross-fertilise
we could cross-fertilise
you could cross-fertilise
they could cross-fertilise 	I could be cross-fertilising
you could be cross-fertilising
she could be cross-fertilising
we could be cross-fertilising
you could be cross-fertilising
they could be cross-fertilising	I could have cross-fertilised
you could have cross-fertilised
she could have cross-fertilised
we could have cross-fertilised
you could have cross-fertilised
they could have cross-fertilised	I could have been cross-fertilising
you could have been cross-fertilising
she could have been cross-fertilising
we could have been cross-fertilising
you could have been cross-fertilising
they could have been cross-fertilising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't cross-fertilise
you couldn't cross-fertilise
she couldn't cross-fertilise
we couldn't cross-fertilise
you couldn't cross-fertilise
they couldn't cross-fertilise 	I couldn't be cross-fertilising
you couldn't be cross-fertilising
she couldn't be cross-fertilising
we couldn't be cross-fertilising
you couldn't be cross-fertilising
they couldn't be cross-fertilising	I couldn't have cross-fertilised
you couldn't have cross-fertilised
she couldn't have cross-fertilised
we couldn't have cross-fertilised
you couldn't have cross-fertilised
they couldn't have cross-fertilised	I couldn't have been cross-fertilising
you couldn't have been cross-fertilising
she couldn't have been cross-fertilising
we couldn't have been cross-fertilising
you couldn't have been cross-fertilising
they couldn't have been cross-fertilising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I cross-fertilise?
could you cross-fertilise?
could she cross-fertilise?
could we cross-fertilise?
could you cross-fertilise?
could they cross-fertilise? 	could I be cross-fertilising?
could you be cross-fertilising?
could she be cross-fertilising?
could we be cross-fertilising?
could you be cross-fertilising?
could they be cross-fertilising? 	could I have cross-fertilised?
could you have cross-fertilised?
could she have cross-fertilised?
could we have cross-fertilised?
could you have cross-fertilised?
could they have cross-fertilised? 	could I have been cross-fertilising?
could you have been cross-fertilising?
could she have been cross-fertilising?
could we have been cross-fertilising?
could you have been cross-fertilising?
could they have been cross-fertilising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I cross-fertilise?
couldn't you cross-fertilise?
couldn't she cross-fertilise?
couldn't we cross-fertilise?
couldn't you cross-fertilise?
couldn't they cross-fertilise? 	couldn't I be cross-fertilising?
couldn't you be cross-fertilising?
couldn't she be cross-fertilising?
couldn't we be cross-fertilising?
couldn't you be cross-fertilising?
couldn't they be cross-fertilising? 	couldn't I have cross-fertilised?
couldn't you have cross-fertilised?
couldn't she have cross-fertilised?
couldn't we have cross-fertilised?
couldn't you have cross-fertilised?
couldn't they have cross-fertilised? 	couldn't I have been cross-fertilising?
couldn't you have been cross-fertilising?
couldn't she have been cross-fertilising?
couldn't we have been cross-fertilising?
couldn't you have been cross-fertilising?
couldn't they have been cross-fertilising?