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