could deionize
Regular verb: deionize - deionized- deionized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could deionize
you could deionize
she could deionize
we could deionize
you could deionize
they could deionize 	I could be deionizing
you could be deionizing
she could be deionizing
we could be deionizing
you could be deionizing
they could be deionizing	I could have deionized
you could have deionized
she could have deionized
we could have deionized
you could have deionized
they could have deionized	I could have been deionizing
you could have been deionizing
she could have been deionizing
we could have been deionizing
you could have been deionizing
they could have been deionizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not deionize
you could not deionize
she could not deionize
we could not deionize
you could not deionize
they could not deionize 	I could not be deionizing
you could not be deionizing
she could not be deionizing
we could not be deionizing
you could not be deionizing
they could not be deionizing	I could not have deionized
you could not have deionized
she could not have deionized
we could not have deionized
you could not have deionized
they could not have deionized	I could not have been deionizing
you could not have been deionizing
she could not have been deionizing
we could not have been deionizing
you could not have been deionizing
they could not have been deionizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I deionize?
could you deionize?
could she deionize?
could we deionize?
could you deionize?
could they deionize? 	could I be deionizing?
could you be deionizing?
could she be deionizing?
could we be deionizing?
could you be deionizing?
could they be deionizing? 	could I have deionized?
could you have deionized?
could she have deionized?
could we have deionized?
could you have deionized?
could they have deionized? 	could I have been deionizing?
could you have been deionizing?
could she have been deionizing?
could we have been deionizing?
could you have been deionizing?
could they have been deionizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not deionize?
could you not deionize?
could she not deionize?
could we not deionize?
could you not deionize?
could they not deionize? 	could I not be deionizing?
could you not be deionizing?
could she not be deionizing?
could we not be deionizing?
could you not be deionizing?
could they not be deionizing? 	could I not have deionized?
could you not have deionized?
could she not have deionized?
could we not have deionized?
could you not have deionized?
could they not have deionized? 	could I not have been deionizing?
could you not have been deionizing?
could she not have been deionizing?
could we not have been deionizing?
could you not have been deionizing?
could they not have been deionizing?