could seine
Verbe régulier : seine - seined- seined

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could seine
you could seine
she could seine
we could seine
you could seine
they could seine 	I could be seining
you could be seining
she could be seining
we could be seining
you could be seining
they could be seining	I could have seined
you could have seined
she could have seined
we could have seined
you could have seined
they could have seined	I could have been seining
you could have been seining
she could have been seining
we could have been seining
you could have been seining
they could have been seining	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't seine
you couldn't seine
she couldn't seine
we couldn't seine
you couldn't seine
they couldn't seine 	I couldn't be seining
you couldn't be seining
she couldn't be seining
we couldn't be seining
you couldn't be seining
they couldn't be seining	I couldn't have seined
you couldn't have seined
she couldn't have seined
we couldn't have seined
you couldn't have seined
they couldn't have seined	I couldn't have been seining
you couldn't have been seining
she couldn't have been seining
we couldn't have been seining
you couldn't have been seining
they couldn't have been seining	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I seine?
could you seine?
could she seine?
could we seine?
could you seine?
could they seine? 	could I be seining?
could you be seining?
could she be seining?
could we be seining?
could you be seining?
could they be seining? 	could I have seined?
could you have seined?
could she have seined?
could we have seined?
could you have seined?
could they have seined? 	could I have been seining?
could you have been seining?
could she have been seining?
could we have been seining?
could you have been seining?
could they have been seining? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I seine?
couldn't you seine?
couldn't she seine?
couldn't we seine?
couldn't you seine?
couldn't they seine? 	couldn't I be seining?
couldn't you be seining?
couldn't she be seining?
couldn't we be seining?
couldn't you be seining?
couldn't they be seining? 	couldn't I have seined?
couldn't you have seined?
couldn't she have seined?
couldn't we have seined?
couldn't you have seined?
couldn't they have seined? 	couldn't I have been seining?
couldn't you have been seining?
couldn't she have been seining?
couldn't we have been seining?
couldn't you have been seining?
couldn't they have been seining?