could deoxidize
Regular verb: deoxidize - deoxidized- deoxidized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could deoxidize
you could deoxidize
he could deoxidize
we could deoxidize
you could deoxidize
they could deoxidize 	I could be deoxidizing
you could be deoxidizing
he could be deoxidizing
we could be deoxidizing
you could be deoxidizing
they could be deoxidizing	I could have deoxidized
you could have deoxidized
he could have deoxidized
we could have deoxidized
you could have deoxidized
they could have deoxidized	I could have been deoxidizing
you could have been deoxidizing
he could have been deoxidizing
we could have been deoxidizing
you could have been deoxidizing
they could have been deoxidizing	

Negation 	
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I couldn't deoxidize
you couldn't deoxidize
he couldn't deoxidize
we couldn't deoxidize
you couldn't deoxidize
they couldn't deoxidize 	I couldn't be deoxidizing
you couldn't be deoxidizing
he couldn't be deoxidizing
we couldn't be deoxidizing
you couldn't be deoxidizing
they couldn't be deoxidizing	I couldn't have deoxidized
you couldn't have deoxidized
he couldn't have deoxidized
we couldn't have deoxidized
you couldn't have deoxidized
they couldn't have deoxidized	I couldn't have been deoxidizing
you couldn't have been deoxidizing
he couldn't have been deoxidizing
we couldn't have been deoxidizing
you couldn't have been deoxidizing
they couldn't have been deoxidizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I deoxidize?
could you deoxidize?
could he deoxidize?
could we deoxidize?
could you deoxidize?
could they deoxidize? 	could I be deoxidizing?
could you be deoxidizing?
could he be deoxidizing?
could we be deoxidizing?
could you be deoxidizing?
could they be deoxidizing? 	could I have deoxidized?
could you have deoxidized?
could he have deoxidized?
could we have deoxidized?
could you have deoxidized?
could they have deoxidized? 	could I have been deoxidizing?
could you have been deoxidizing?
could he have been deoxidizing?
could we have been deoxidizing?
could you have been deoxidizing?
could they have been deoxidizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I deoxidize?
couldn't you deoxidize?
couldn't he deoxidize?
couldn't we deoxidize?
couldn't you deoxidize?
couldn't they deoxidize? 	couldn't I be deoxidizing?
couldn't you be deoxidizing?
couldn't he be deoxidizing?
couldn't we be deoxidizing?
couldn't you be deoxidizing?
couldn't they be deoxidizing? 	couldn't I have deoxidized?
couldn't you have deoxidized?
couldn't he have deoxidized?
couldn't we have deoxidized?
couldn't you have deoxidized?
couldn't they have deoxidized? 	couldn't I have been deoxidizing?
couldn't you have been deoxidizing?
couldn't he have been deoxidizing?
couldn't we have been deoxidizing?
couldn't you have been deoxidizing?
couldn't they have been deoxidizing?