I could analyze you could analyze he could analyze we could analyze you could analyze they could analyze
V-ing form
I could be analyzing you could be analyzing he could be analyzing we could be analyzing you could be analyzing they could be analyzing
Perfect
I could have analyzed you could have analyzed he could have analyzed we could have analyzed you could have analyzed they could have analyzed
V-ing perfect
I could have been analyzing you could have been analyzing he could have been analyzing we could have been analyzing you could have been analyzing they could have been analyzing
Negation
Simple form
I could not analyze you could not analyze he could not analyze we could not analyze you could not analyze they could not analyze
V-ing form
I could not be analyzing you could not be analyzing he could not be analyzing we could not be analyzing you could not be analyzing they could not be analyzing
Perfect
I could not have analyzed you could not have analyzed he could not have analyzed we could not have analyzed you could not have analyzed they could not have analyzed
V-ing perfect
I could not have been analyzing you could not have been analyzing he could not have been analyzing we could not have been analyzing you could not have been analyzing they could not have been analyzing
Interrogative form
Simple form
could I analyze? could you analyze? could he analyze? could we analyze? could you analyze? could they analyze?
V-ing form
could I be analyzing? could you be analyzing? could he be analyzing? could we be analyzing? could you be analyzing? could they be analyzing?
Perfect
could I have analyzed? could you have analyzed? could he have analyzed? could we have analyzed? could you have analyzed? could they have analyzed?
V-ing perfect
could I have been analyzing? could you have been analyzing? could he have been analyzing? could we have been analyzing? could you have been analyzing? could they have been analyzing?
Interro-negative form
Simple form
could I not analyze? could you not analyze? could he not analyze? could we not analyze? could you not analyze? could they not analyze?
V-ing form
could I not be analyzing? could you not be analyzing? could he not be analyzing? could we not be analyzing? could you not be analyzing? could they not be analyzing?
Perfect
could I not have analyzed? could you not have analyzed? could he not have analyzed? could we not have analyzed? could you not have analyzed? could they not have analyzed?
V-ing perfect
could I not have been analyzing? could you not have been analyzing? could he not have been analyzing? could we not have been analyzing? could you not have been analyzing? could they not have been analyzing?