I could contradistinguish you could contradistinguish she could contradistinguish we could contradistinguish you could contradistinguish they could contradistinguish
V-ing form
I could be contradistinguishing you could be contradistinguishing she could be contradistinguishing we could be contradistinguishing you could be contradistinguishing they could be contradistinguishing
Perfect
I could have contradistinguished you could have contradistinguished she 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 she 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 she 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 she 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 she 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 she 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 she contradistinguish? could we contradistinguish? could you contradistinguish? could they contradistinguish?
V-ing form
could I be contradistinguishing? could you be contradistinguishing? could she be contradistinguishing? could we be contradistinguishing? could you be contradistinguishing? could they be contradistinguishing?
Perfect
could I have contradistinguished? could you have contradistinguished? could she 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 she 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 she 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 she 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 she 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 she not have been contradistinguishing? could we not have been contradistinguishing? could you not have been contradistinguishing? could they not have been contradistinguishing?