I could evacuate you could evacuate he could evacuate we could evacuate you could evacuate they could evacuate
V-ing form
I could be evacuating you could be evacuating he could be evacuating we could be evacuating you could be evacuating they could be evacuating
Perfect
I could have evacuated you could have evacuated he could have evacuated we could have evacuated you could have evacuated they could have evacuated
V-ing perfect
I could have been evacuating you could have been evacuating he could have been evacuating we could have been evacuating you could have been evacuating they could have been evacuating
Negation
Simple form
I could not evacuate you could not evacuate he could not evacuate we could not evacuate you could not evacuate they could not evacuate
V-ing form
I could not be evacuating you could not be evacuating he could not be evacuating we could not be evacuating you could not be evacuating they could not be evacuating
Perfect
I could not have evacuated you could not have evacuated he could not have evacuated we could not have evacuated you could not have evacuated they could not have evacuated
V-ing perfect
I could not have been evacuating you could not have been evacuating he could not have been evacuating we could not have been evacuating you could not have been evacuating they could not have been evacuating
Interrogative form
Simple form
could I evacuate? could you evacuate? could he evacuate? could we evacuate? could you evacuate? could they evacuate?
V-ing form
could I be evacuating? could you be evacuating? could he be evacuating? could we be evacuating? could you be evacuating? could they be evacuating?
Perfect
could I have evacuated? could you have evacuated? could he have evacuated? could we have evacuated? could you have evacuated? could they have evacuated?
V-ing perfect
could I have been evacuating? could you have been evacuating? could he have been evacuating? could we have been evacuating? could you have been evacuating? could they have been evacuating?
Interro-negative form
Simple form
could I not evacuate? could you not evacuate? could he not evacuate? could we not evacuate? could you not evacuate? could they not evacuate?
V-ing form
could I not be evacuating? could you not be evacuating? could he not be evacuating? could we not be evacuating? could you not be evacuating? could they not be evacuating?
Perfect
could I not have evacuated? could you not have evacuated? could he not have evacuated? could we not have evacuated? could you not have evacuated? could they not have evacuated?
V-ing perfect
could I not have been evacuating? could you not have been evacuating? could he not have been evacuating? could we not have been evacuating? could you not have been evacuating? could they not have been evacuating?