could seise
Regular verb: seise - seised- seised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could seise
you could seise
she could seise
we could seise
you could seise
they could seise 	I could be seising
you could be seising
she could be seising
we could be seising
you could be seising
they could be seising	I could have seised
you could have seised
she 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
she could have been seising
we could have been seising
you could have been seising
they could have been seising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not seise
you could not seise
she could not seise
we could not seise
you could not seise
they could not seise 	I could not be seising
you could not be seising
she could not be seising
we could not be seising
you could not be seising
they could not be seising	I could not have seised
you could not have seised
she could not have seised
we could not have seised
you could not have seised
they could not have seised	I could not have been seising
you could not have been seising
she could not have been seising
we could not have been seising
you could not have been seising
they could not have been seising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I seise?
could you seise?
could she seise?
could we seise?
could you seise?
could they seise? 	could I be seising?
could you be seising?
could she be seising?
could we be seising?
could you be seising?
could they be seising? 	could I have seised?
could you have seised?
could she 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 she have been seising?
could we have been seising?
could you have been seising?
could they have been seising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not seise?
could you not seise?
could she not seise?
could we not seise?
could you not seise?
could they not seise? 	could I not be seising?
could you not be seising?
could she not be seising?
could we not be seising?
could you not be seising?
could they not be seising? 	could I not have seised?
could you not have seised?
could she not have seised?
could we not have seised?
could you not have seised?
could they not have seised? 	could I not have been seising?
could you not have been seising?
could she not have been seising?
could we not have been seising?
could you not have been seising?
could they not have been seising?