could subspecialise
Verbe régulier : subspecialise - subspecialised- subspecialised

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could subspecialise
you could subspecialise
she could subspecialise
we could subspecialise
you could subspecialise
they could subspecialise 	I could be subspecialising
you could be subspecialising
she could be subspecialising
we could be subspecialising
you could be subspecialising
they could be subspecialising	I could have subspecialised
you could have subspecialised
she could have subspecialised
we could have subspecialised
you could have subspecialised
they could have subspecialised	I could have been subspecialising
you could have been subspecialising
she could have been subspecialising
we could have been subspecialising
you could have been subspecialising
they could have been subspecialising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't subspecialise
you couldn't subspecialise
she couldn't subspecialise
we couldn't subspecialise
you couldn't subspecialise
they couldn't subspecialise 	I couldn't be subspecialising
you couldn't be subspecialising
she couldn't be subspecialising
we couldn't be subspecialising
you couldn't be subspecialising
they couldn't be subspecialising	I couldn't have subspecialised
you couldn't have subspecialised
she couldn't have subspecialised
we couldn't have subspecialised
you couldn't have subspecialised
they couldn't have subspecialised	I couldn't have been subspecialising
you couldn't have been subspecialising
she couldn't have been subspecialising
we couldn't have been subspecialising
you couldn't have been subspecialising
they couldn't have been subspecialising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I subspecialise?
could you subspecialise?
could she subspecialise?
could we subspecialise?
could you subspecialise?
could they subspecialise? 	could I be subspecialising?
could you be subspecialising?
could she be subspecialising?
could we be subspecialising?
could you be subspecialising?
could they be subspecialising? 	could I have subspecialised?
could you have subspecialised?
could she have subspecialised?
could we have subspecialised?
could you have subspecialised?
could they have subspecialised? 	could I have been subspecialising?
could you have been subspecialising?
could she have been subspecialising?
could we have been subspecialising?
could you have been subspecialising?
could they have been subspecialising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I subspecialise?
couldn't you subspecialise?
couldn't she subspecialise?
couldn't we subspecialise?
couldn't you subspecialise?
couldn't they subspecialise? 	couldn't I be subspecialising?
couldn't you be subspecialising?
couldn't she be subspecialising?
couldn't we be subspecialising?
couldn't you be subspecialising?
couldn't they be subspecialising? 	couldn't I have subspecialised?
couldn't you have subspecialised?
couldn't she have subspecialised?
couldn't we have subspecialised?
couldn't you have subspecialised?
couldn't they have subspecialised? 	couldn't I have been subspecialising?
couldn't you have been subspecialising?
couldn't she have been subspecialising?
couldn't we have been subspecialising?
couldn't you have been subspecialising?
couldn't they have been subspecialising?