I could decimate you could decimate he could decimate we could decimate you could decimate they could decimate
V-ing form
I could be decimating you could be decimating he could be decimating we could be decimating you could be decimating they could be decimating
Perfect
I could have decimated you could have decimated he could have decimated we could have decimated you could have decimated they could have decimated
V-ing perfect
I could have been decimating you could have been decimating he could have been decimating we could have been decimating you could have been decimating they could have been decimating
Negation
Simple form
I could not decimate you could not decimate he could not decimate we could not decimate you could not decimate they could not decimate
V-ing form
I could not be decimating you could not be decimating he could not be decimating we could not be decimating you could not be decimating they could not be decimating
Perfect
I could not have decimated you could not have decimated he could not have decimated we could not have decimated you could not have decimated they could not have decimated
V-ing perfect
I could not have been decimating you could not have been decimating he could not have been decimating we could not have been decimating you could not have been decimating they could not have been decimating
Interrogative form
Simple form
could I decimate? could you decimate? could he decimate? could we decimate? could you decimate? could they decimate?
V-ing form
could I be decimating? could you be decimating? could he be decimating? could we be decimating? could you be decimating? could they be decimating?
Perfect
could I have decimated? could you have decimated? could he have decimated? could we have decimated? could you have decimated? could they have decimated?
V-ing perfect
could I have been decimating? could you have been decimating? could he have been decimating? could we have been decimating? could you have been decimating? could they have been decimating?
Interro-negative form
Simple form
could I not decimate? could you not decimate? could he not decimate? could we not decimate? could you not decimate? could they not decimate?
V-ing form
could I not be decimating? could you not be decimating? could he not be decimating? could we not be decimating? could you not be decimating? could they not be decimating?
Perfect
could I not have decimated? could you not have decimated? could he not have decimated? could we not have decimated? could you not have decimated? could they not have decimated?
V-ing perfect
could I not have been decimating? could you not have been decimating? could he not have been decimating? could we not have been decimating? could you not have been decimating? could they not have been decimating?