could demagnetize
Regular verb: demagnetize - demagnetized- demagnetized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could demagnetize
you could demagnetize
he could demagnetize
we could demagnetize
you could demagnetize
they could demagnetize 	I could be demagnetizing
you could be demagnetizing
he could be demagnetizing
we could be demagnetizing
you could be demagnetizing
they could be demagnetizing	I could have demagnetized
you could have demagnetized
he could have demagnetized
we could have demagnetized
you could have demagnetized
they could have demagnetized	I could have been demagnetizing
you could have been demagnetizing
he could have been demagnetizing
we could have been demagnetizing
you could have been demagnetizing
they could have been demagnetizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't demagnetize
you couldn't demagnetize
he couldn't demagnetize
we couldn't demagnetize
you couldn't demagnetize
they couldn't demagnetize 	I couldn't be demagnetizing
you couldn't be demagnetizing
he couldn't be demagnetizing
we couldn't be demagnetizing
you couldn't be demagnetizing
they couldn't be demagnetizing	I couldn't have demagnetized
you couldn't have demagnetized
he couldn't have demagnetized
we couldn't have demagnetized
you couldn't have demagnetized
they couldn't have demagnetized	I couldn't have been demagnetizing
you couldn't have been demagnetizing
he couldn't have been demagnetizing
we couldn't have been demagnetizing
you couldn't have been demagnetizing
they couldn't have been demagnetizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I demagnetize?
could you demagnetize?
could he demagnetize?
could we demagnetize?
could you demagnetize?
could they demagnetize? 	could I be demagnetizing?
could you be demagnetizing?
could he be demagnetizing?
could we be demagnetizing?
could you be demagnetizing?
could they be demagnetizing? 	could I have demagnetized?
could you have demagnetized?
could he have demagnetized?
could we have demagnetized?
could you have demagnetized?
could they have demagnetized? 	could I have been demagnetizing?
could you have been demagnetizing?
could he have been demagnetizing?
could we have been demagnetizing?
could you have been demagnetizing?
could they have been demagnetizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I demagnetize?
couldn't you demagnetize?
couldn't he demagnetize?
couldn't we demagnetize?
couldn't you demagnetize?
couldn't they demagnetize? 	couldn't I be demagnetizing?
couldn't you be demagnetizing?
couldn't he be demagnetizing?
couldn't we be demagnetizing?
couldn't you be demagnetizing?
couldn't they be demagnetizing? 	couldn't I have demagnetized?
couldn't you have demagnetized?
couldn't he have demagnetized?
couldn't we have demagnetized?
couldn't you have demagnetized?
couldn't they have demagnetized? 	couldn't I have been demagnetizing?
couldn't you have been demagnetizing?
couldn't he have been demagnetizing?
couldn't we have been demagnetizing?
couldn't you have been demagnetizing?
couldn't they have been demagnetizing?