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