could masculinize
Regular verb: masculinize - masculinized- masculinized

Affirmation 	
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I could masculinize
you could masculinize
he could masculinize
we could masculinize
you could masculinize
they could masculinize 	I could be masculinizing
you could be masculinizing
he could be masculinizing
we could be masculinizing
you could be masculinizing
they could be masculinizing	I could have masculinized
you could have masculinized
he could have masculinized
we could have masculinized
you could have masculinized
they could have masculinized	I could have been masculinizing
you could have been masculinizing
he could have been masculinizing
we could have been masculinizing
you could have been masculinizing
they could have been masculinizing	

Negation 	
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I couldn't masculinize
you couldn't masculinize
he couldn't masculinize
we couldn't masculinize
you couldn't masculinize
they couldn't masculinize 	I couldn't be masculinizing
you couldn't be masculinizing
he couldn't be masculinizing
we couldn't be masculinizing
you couldn't be masculinizing
they couldn't be masculinizing	I couldn't have masculinized
you couldn't have masculinized
he couldn't have masculinized
we couldn't have masculinized
you couldn't have masculinized
they couldn't have masculinized	I couldn't have been masculinizing
you couldn't have been masculinizing
he couldn't have been masculinizing
we couldn't have been masculinizing
you couldn't have been masculinizing
they couldn't have been masculinizing	

Interrogative form 	
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could I masculinize?
could you masculinize?
could he masculinize?
could we masculinize?
could you masculinize?
could they masculinize? 	could I be masculinizing?
could you be masculinizing?
could he be masculinizing?
could we be masculinizing?
could you be masculinizing?
could they be masculinizing? 	could I have masculinized?
could you have masculinized?
could he have masculinized?
could we have masculinized?
could you have masculinized?
could they have masculinized? 	could I have been masculinizing?
could you have been masculinizing?
could he have been masculinizing?
could we have been masculinizing?
could you have been masculinizing?
could they have been masculinizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I masculinize?
couldn't you masculinize?
couldn't he masculinize?
couldn't we masculinize?
couldn't you masculinize?
couldn't they masculinize? 	couldn't I be masculinizing?
couldn't you be masculinizing?
couldn't he be masculinizing?
couldn't we be masculinizing?
couldn't you be masculinizing?
couldn't they be masculinizing? 	couldn't I have masculinized?
couldn't you have masculinized?
couldn't he have masculinized?
couldn't we have masculinized?
couldn't you have masculinized?
couldn't they have masculinized? 	couldn't I have been masculinizing?
couldn't you have been masculinizing?
couldn't he have been masculinizing?
couldn't we have been masculinizing?
couldn't you have been masculinizing?
couldn't they have been masculinizing?