could nationalize
Regular verb: nationalize - nationalized- nationalized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could nationalize
you could nationalize
she could nationalize
we could nationalize
you could nationalize
they could nationalize 	I could be nationalizing
you could be nationalizing
she could be nationalizing
we could be nationalizing
you could be nationalizing
they could be nationalizing	I could have nationalized
you could have nationalized
she could have nationalized
we could have nationalized
you could have nationalized
they could have nationalized	I could have been nationalizing
you could have been nationalizing
she could have been nationalizing
we could have been nationalizing
you could have been nationalizing
they could have been nationalizing	

Negation 	
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I could not nationalize
you could not nationalize
she could not nationalize
we could not nationalize
you could not nationalize
they could not nationalize 	I could not be nationalizing
you could not be nationalizing
she could not be nationalizing
we could not be nationalizing
you could not be nationalizing
they could not be nationalizing	I could not have nationalized
you could not have nationalized
she could not have nationalized
we could not have nationalized
you could not have nationalized
they could not have nationalized	I could not have been nationalizing
you could not have been nationalizing
she could not have been nationalizing
we could not have been nationalizing
you could not have been nationalizing
they could not have been nationalizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I nationalize?
could you nationalize?
could she nationalize?
could we nationalize?
could you nationalize?
could they nationalize? 	could I be nationalizing?
could you be nationalizing?
could she be nationalizing?
could we be nationalizing?
could you be nationalizing?
could they be nationalizing? 	could I have nationalized?
could you have nationalized?
could she have nationalized?
could we have nationalized?
could you have nationalized?
could they have nationalized? 	could I have been nationalizing?
could you have been nationalizing?
could she have been nationalizing?
could we have been nationalizing?
could you have been nationalizing?
could they have been nationalizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not nationalize?
could you not nationalize?
could she not nationalize?
could we not nationalize?
could you not nationalize?
could they not nationalize? 	could I not be nationalizing?
could you not be nationalizing?
could she not be nationalizing?
could we not be nationalizing?
could you not be nationalizing?
could they not be nationalizing? 	could I not have nationalized?
could you not have nationalized?
could she not have nationalized?
could we not have nationalized?
could you not have nationalized?
could they not have nationalized? 	could I not have been nationalizing?
could you not have been nationalizing?
could she not have been nationalizing?
could we not have been nationalizing?
could you not have been nationalizing?
could they not have been nationalizing?