I could denazify you could denazify she could denazify we could denazify you could denazify they could denazify
V-ing form
I could be denazifying you could be denazifying she could be denazifying we could be denazifying you could be denazifying they could be denazifying
Perfect
I could have denazified you could have denazified she 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 she 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 she 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 she 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 she 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 she 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 she denazify? could we denazify? could you denazify? could they denazify?
V-ing form
could I be denazifying? could you be denazifying? could she be denazifying? could we be denazifying? could you be denazifying? could they be denazifying?
Perfect
could I have denazified? could you have denazified? could she 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 she 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 she 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 she 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 she 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 she have been denazifying? couldn't we have been denazifying? couldn't you have been denazifying? couldn't they have been denazifying?