I could contradistinguish you could contradistinguish he could contradistinguish we could contradistinguish you could contradistinguish they could contradistinguish
V-ing form
I could be contradistinguishing you could be contradistinguishing he could be contradistinguishing we could be contradistinguishing you could be contradistinguishing they could be contradistinguishing
Perfect
I could have contradistinguished you could have contradistinguished he could have contradistinguished we could have contradistinguished you could have contradistinguished they could have contradistinguished
V-ing perfect
I could have been contradistinguishing you could have been contradistinguishing he could have been contradistinguishing we could have been contradistinguishing you could have been contradistinguishing they could have been contradistinguishing
Negation
Simple form
I could not contradistinguish you could not contradistinguish he could not contradistinguish we could not contradistinguish you could not contradistinguish they could not contradistinguish
V-ing form
I could not be contradistinguishing you could not be contradistinguishing he could not be contradistinguishing we could not be contradistinguishing you could not be contradistinguishing they could not be contradistinguishing
Perfect
I could not have contradistinguished you could not have contradistinguished he could not have contradistinguished we could not have contradistinguished you could not have contradistinguished they could not have contradistinguished
V-ing perfect
I could not have been contradistinguishing you could not have been contradistinguishing he could not have been contradistinguishing we could not have been contradistinguishing you could not have been contradistinguishing they could not have been contradistinguishing
Interrogative form
Simple form
could I contradistinguish? could you contradistinguish? could he contradistinguish? could we contradistinguish? could you contradistinguish? could they contradistinguish?
V-ing form
could I be contradistinguishing? could you be contradistinguishing? could he be contradistinguishing? could we be contradistinguishing? could you be contradistinguishing? could they be contradistinguishing?
Perfect
could I have contradistinguished? could you have contradistinguished? could he have contradistinguished? could we have contradistinguished? could you have contradistinguished? could they have contradistinguished?
V-ing perfect
could I have been contradistinguishing? could you have been contradistinguishing? could he have been contradistinguishing? could we have been contradistinguishing? could you have been contradistinguishing? could they have been contradistinguishing?
Interro-negative form
Simple form
could I not contradistinguish? could you not contradistinguish? could he not contradistinguish? could we not contradistinguish? could you not contradistinguish? could they not contradistinguish?
V-ing form
could I not be contradistinguishing? could you not be contradistinguishing? could he not be contradistinguishing? could we not be contradistinguishing? could you not be contradistinguishing? could they not be contradistinguishing?
Perfect
could I not have contradistinguished? could you not have contradistinguished? could he not have contradistinguished? could we not have contradistinguished? could you not have contradistinguished? could they not have contradistinguished?
V-ing perfect
could I not have been contradistinguishing? could you not have been contradistinguishing? could he not have been contradistinguishing? could we not have been contradistinguishing? could you not have been contradistinguishing? could they not have been contradistinguishing?