could inactivate
Regular verb: inactivate - inactivated- inactivated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could inactivate
you could inactivate
she could inactivate
we could inactivate
you could inactivate
they could inactivate 	I could be inactivating
you could be inactivating
she could be inactivating
we could be inactivating
you could be inactivating
they could be inactivating	I could have inactivated
you could have inactivated
she could have inactivated
we could have inactivated
you could have inactivated
they could have inactivated	I could have been inactivating
you could have been inactivating
she could have been inactivating
we could have been inactivating
you could have been inactivating
they could have been inactivating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't inactivate
you couldn't inactivate
she couldn't inactivate
we couldn't inactivate
you couldn't inactivate
they couldn't inactivate 	I couldn't be inactivating
you couldn't be inactivating
she couldn't be inactivating
we couldn't be inactivating
you couldn't be inactivating
they couldn't be inactivating	I couldn't have inactivated
you couldn't have inactivated
she couldn't have inactivated
we couldn't have inactivated
you couldn't have inactivated
they couldn't have inactivated	I couldn't have been inactivating
you couldn't have been inactivating
she couldn't have been inactivating
we couldn't have been inactivating
you couldn't have been inactivating
they couldn't have been inactivating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I inactivate?
could you inactivate?
could she inactivate?
could we inactivate?
could you inactivate?
could they inactivate? 	could I be inactivating?
could you be inactivating?
could she be inactivating?
could we be inactivating?
could you be inactivating?
could they be inactivating? 	could I have inactivated?
could you have inactivated?
could she have inactivated?
could we have inactivated?
could you have inactivated?
could they have inactivated? 	could I have been inactivating?
could you have been inactivating?
could she have been inactivating?
could we have been inactivating?
could you have been inactivating?
could they have been inactivating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I inactivate?
couldn't you inactivate?
couldn't she inactivate?
couldn't we inactivate?
couldn't you inactivate?
couldn't they inactivate? 	couldn't I be inactivating?
couldn't you be inactivating?
couldn't she be inactivating?
couldn't we be inactivating?
couldn't you be inactivating?
couldn't they be inactivating? 	couldn't I have inactivated?
couldn't you have inactivated?
couldn't she have inactivated?
couldn't we have inactivated?
couldn't you have inactivated?
couldn't they have inactivated? 	couldn't I have been inactivating?
couldn't you have been inactivating?
couldn't she have been inactivating?
couldn't we have been inactivating?
couldn't you have been inactivating?
couldn't they have been inactivating?