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