could seclude
Regular verb: seclude - secluded- secluded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could seclude
you could seclude
she could seclude
we could seclude
you could seclude
they could seclude 	I could be secluding
you could be secluding
she could be secluding
we could be secluding
you could be secluding
they could be secluding	I could have secluded
you could have secluded
she could have secluded
we could have secluded
you could have secluded
they could have secluded	I could have been secluding
you could have been secluding
she could have been secluding
we could have been secluding
you could have been secluding
they could have been secluding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't seclude
you couldn't seclude
she couldn't seclude
we couldn't seclude
you couldn't seclude
they couldn't seclude 	I couldn't be secluding
you couldn't be secluding
she couldn't be secluding
we couldn't be secluding
you couldn't be secluding
they couldn't be secluding	I couldn't have secluded
you couldn't have secluded
she couldn't have secluded
we couldn't have secluded
you couldn't have secluded
they couldn't have secluded	I couldn't have been secluding
you couldn't have been secluding
she couldn't have been secluding
we couldn't have been secluding
you couldn't have been secluding
they couldn't have been secluding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I seclude?
could you seclude?
could she seclude?
could we seclude?
could you seclude?
could they seclude? 	could I be secluding?
could you be secluding?
could she be secluding?
could we be secluding?
could you be secluding?
could they be secluding? 	could I have secluded?
could you have secluded?
could she have secluded?
could we have secluded?
could you have secluded?
could they have secluded? 	could I have been secluding?
could you have been secluding?
could she have been secluding?
could we have been secluding?
could you have been secluding?
could they have been secluding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I seclude?
couldn't you seclude?
couldn't she seclude?
couldn't we seclude?
couldn't you seclude?
couldn't they seclude? 	couldn't I be secluding?
couldn't you be secluding?
couldn't she be secluding?
couldn't we be secluding?
couldn't you be secluding?
couldn't they be secluding? 	couldn't I have secluded?
couldn't you have secluded?
couldn't she have secluded?
couldn't we have secluded?
couldn't you have secluded?
couldn't they have secluded? 	couldn't I have been secluding?
couldn't you have been secluding?
couldn't she have been secluding?
couldn't we have been secluding?
couldn't you have been secluding?
couldn't they have been secluding?