could amortize
Regular verb: amortize - amortized- amortized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could amortize
you could amortize
he could amortize
we could amortize
you could amortize
they could amortize 	I could be amortizing
you could be amortizing
he could be amortizing
we could be amortizing
you could be amortizing
they could be amortizing	I could have amortized
you could have amortized
he could have amortized
we could have amortized
you could have amortized
they could have amortized	I could have been amortizing
you could have been amortizing
he could have been amortizing
we could have been amortizing
you could have been amortizing
they could have been amortizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't amortize
you couldn't amortize
he couldn't amortize
we couldn't amortize
you couldn't amortize
they couldn't amortize 	I couldn't be amortizing
you couldn't be amortizing
he couldn't be amortizing
we couldn't be amortizing
you couldn't be amortizing
they couldn't be amortizing	I couldn't have amortized
you couldn't have amortized
he couldn't have amortized
we couldn't have amortized
you couldn't have amortized
they couldn't have amortized	I couldn't have been amortizing
you couldn't have been amortizing
he couldn't have been amortizing
we couldn't have been amortizing
you couldn't have been amortizing
they couldn't have been amortizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I amortize?
could you amortize?
could he amortize?
could we amortize?
could you amortize?
could they amortize? 	could I be amortizing?
could you be amortizing?
could he be amortizing?
could we be amortizing?
could you be amortizing?
could they be amortizing? 	could I have amortized?
could you have amortized?
could he have amortized?
could we have amortized?
could you have amortized?
could they have amortized? 	could I have been amortizing?
could you have been amortizing?
could he have been amortizing?
could we have been amortizing?
could you have been amortizing?
could they have been amortizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I amortize?
couldn't you amortize?
couldn't he amortize?
couldn't we amortize?
couldn't you amortize?
couldn't they amortize? 	couldn't I be amortizing?
couldn't you be amortizing?
couldn't he be amortizing?
couldn't we be amortizing?
couldn't you be amortizing?
couldn't they be amortizing? 	couldn't I have amortized?
couldn't you have amortized?
couldn't he have amortized?
couldn't we have amortized?
couldn't you have amortized?
couldn't they have amortized? 	couldn't I have been amortizing?
couldn't you have been amortizing?
couldn't he have been amortizing?
couldn't we have been amortizing?
couldn't you have been amortizing?
couldn't they have been amortizing?