I could cross-examine you could cross-examine he could cross-examine we could cross-examine you could cross-examine they could cross-examine
V-ing form
I could be cross-examining you could be cross-examining he could be cross-examining we could be cross-examining you could be cross-examining they could be cross-examining
Perfect
I could have cross-examined you could have cross-examined he could have cross-examined we could have cross-examined you could have cross-examined they could have cross-examined
V-ing perfect
I could have been cross-examining you could have been cross-examining he could have been cross-examining we could have been cross-examining you could have been cross-examining they could have been cross-examining
Negation
Simple form
I couldn't cross-examine you couldn't cross-examine he couldn't cross-examine we couldn't cross-examine you couldn't cross-examine they couldn't cross-examine
V-ing form
I couldn't be cross-examining you couldn't be cross-examining he couldn't be cross-examining we couldn't be cross-examining you couldn't be cross-examining they couldn't be cross-examining
Perfect
I couldn't have cross-examined you couldn't have cross-examined he couldn't have cross-examined we couldn't have cross-examined you couldn't have cross-examined they couldn't have cross-examined
V-ing perfect
I couldn't have been cross-examining you couldn't have been cross-examining he couldn't have been cross-examining we couldn't have been cross-examining you couldn't have been cross-examining they couldn't have been cross-examining
Interrogative form
Simple form
could I cross-examine? could you cross-examine? could he cross-examine? could we cross-examine? could you cross-examine? could they cross-examine?
V-ing form
could I be cross-examining? could you be cross-examining? could he be cross-examining? could we be cross-examining? could you be cross-examining? could they be cross-examining?
Perfect
could I have cross-examined? could you have cross-examined? could he have cross-examined? could we have cross-examined? could you have cross-examined? could they have cross-examined?
V-ing perfect
could I have been cross-examining? could you have been cross-examining? could he have been cross-examining? could we have been cross-examining? could you have been cross-examining? could they have been cross-examining?
Interro-negative form
Simple form
couldn't I cross-examine? couldn't you cross-examine? couldn't he cross-examine? couldn't we cross-examine? couldn't you cross-examine? couldn't they cross-examine?
V-ing form
couldn't I be cross-examining? couldn't you be cross-examining? couldn't he be cross-examining? couldn't we be cross-examining? couldn't you be cross-examining? couldn't they be cross-examining?
Perfect
couldn't I have cross-examined? couldn't you have cross-examined? couldn't he have cross-examined? couldn't we have cross-examined? couldn't you have cross-examined? couldn't they have cross-examined?
V-ing perfect
couldn't I have been cross-examining? couldn't you have been cross-examining? couldn't he have been cross-examining? couldn't we have been cross-examining? couldn't you have been cross-examining? couldn't they have been cross-examining?