could seise
Verbe régulier : seise - seised- seised

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could seise
you could seise
he could seise
we could seise
you could seise
they could seise 	I could be seising
you could be seising
he could be seising
we could be seising
you could be seising
they could be seising	I could have seised
you could have seised
he could have seised
we could have seised
you could have seised
they could have seised	I could have been seising
you could have been seising
he could have been seising
we could have been seising
you could have been seising
they could have been seising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't seise
you couldn't seise
he couldn't seise
we couldn't seise
you couldn't seise
they couldn't seise 	I couldn't be seising
you couldn't be seising
he couldn't be seising
we couldn't be seising
you couldn't be seising
they couldn't be seising	I couldn't have seised
you couldn't have seised
he couldn't have seised
we couldn't have seised
you couldn't have seised
they couldn't have seised	I couldn't have been seising
you couldn't have been seising
he couldn't have been seising
we couldn't have been seising
you couldn't have been seising
they couldn't have been seising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I seise?
could you seise?
could he seise?
could we seise?
could you seise?
could they seise? 	could I be seising?
could you be seising?
could he be seising?
could we be seising?
could you be seising?
could they be seising? 	could I have seised?
could you have seised?
could he have seised?
could we have seised?
could you have seised?
could they have seised? 	could I have been seising?
could you have been seising?
could he have been seising?
could we have been seising?
could you have been seising?
could they have been seising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I seise?
couldn't you seise?
couldn't he seise?
couldn't we seise?
couldn't you seise?
couldn't they seise? 	couldn't I be seising?
couldn't you be seising?
couldn't he be seising?
couldn't we be seising?
couldn't you be seising?
couldn't they be seising? 	couldn't I have seised?
couldn't you have seised?
couldn't he have seised?
couldn't we have seised?
couldn't you have seised?
couldn't they have seised? 	couldn't I have been seising?
couldn't you have been seising?
couldn't he have been seising?
couldn't we have been seising?
couldn't you have been seising?
couldn't they have been seising?