I could ammonify you could ammonify he could ammonify we could ammonify you could ammonify they could ammonify
V-ing form
I could be ammonifying you could be ammonifying he could be ammonifying we could be ammonifying you could be ammonifying they could be ammonifying
Perfect
I could have ammonified you could have ammonified he could have ammonified we could have ammonified you could have ammonified they could have ammonified
V-ing perfect
I could have been ammonifying you could have been ammonifying he could have been ammonifying we could have been ammonifying you could have been ammonifying they could have been ammonifying
Negation
Simple form
I couldn't ammonify you couldn't ammonify he couldn't ammonify we couldn't ammonify you couldn't ammonify they couldn't ammonify
V-ing form
I couldn't be ammonifying you couldn't be ammonifying he couldn't be ammonifying we couldn't be ammonifying you couldn't be ammonifying they couldn't be ammonifying
Perfect
I couldn't have ammonified you couldn't have ammonified he couldn't have ammonified we couldn't have ammonified you couldn't have ammonified they couldn't have ammonified
V-ing perfect
I couldn't have been ammonifying you couldn't have been ammonifying he couldn't have been ammonifying we couldn't have been ammonifying you couldn't have been ammonifying they couldn't have been ammonifying
Interrogative form
Simple form
could I ammonify? could you ammonify? could he ammonify? could we ammonify? could you ammonify? could they ammonify?
V-ing form
could I be ammonifying? could you be ammonifying? could he be ammonifying? could we be ammonifying? could you be ammonifying? could they be ammonifying?
Perfect
could I have ammonified? could you have ammonified? could he have ammonified? could we have ammonified? could you have ammonified? could they have ammonified?
V-ing perfect
could I have been ammonifying? could you have been ammonifying? could he have been ammonifying? could we have been ammonifying? could you have been ammonifying? could they have been ammonifying?
Interro-negative form
Simple form
couldn't I ammonify? couldn't you ammonify? couldn't he ammonify? couldn't we ammonify? couldn't you ammonify? couldn't they ammonify?
V-ing form
couldn't I be ammonifying? couldn't you be ammonifying? couldn't he be ammonifying? couldn't we be ammonifying? couldn't you be ammonifying? couldn't they be ammonifying?
Perfect
couldn't I have ammonified? couldn't you have ammonified? couldn't he have ammonified? couldn't we have ammonified? couldn't you have ammonified? couldn't they have ammonified?
V-ing perfect
couldn't I have been ammonifying? couldn't you have been ammonifying? couldn't he have been ammonifying? couldn't we have been ammonifying? couldn't you have been ammonifying? couldn't they have been ammonifying?