Regular verb: trace - traced - traced
Simple form | V-ing form |
I could trace you could trace she could trace we could trace you could trace they could trace | I could be tracing you could be tracing she could be tracing we could be tracing you could be tracing they could be tracing |
Perfect | V-ing perfect |
I could have traced you could have traced she could have traced we could have traced you could have traced they could have traced | I could have been tracing you could have been tracing she could have been tracing we could have been tracing you could have been tracing they could have been tracing |
Simple form | V-ing form |
I could not trace you could not trace she could not trace we could not trace you could not trace they could not trace | I could not be tracing you could not be tracing she could not be tracing we could not be tracing you could not be tracing they could not be tracing |
Perfect | V-ing perfect |
I could not have traced you could not have traced she could not have traced we could not have traced you could not have traced they could not have traced | I could not have been tracing you could not have been tracing she could not have been tracing we could not have been tracing you could not have been tracing they could not have been tracing |
Simple form | V-ing form |
could I trace? could you trace? could she trace? could we trace? could you trace? could they trace? | could I be tracing? could you be tracing? could she be tracing? could we be tracing? could you be tracing? could they be tracing? |
Perfect | V-ing perfect |
could I have traced? could you have traced? could she have traced? could we have traced? could you have traced? could they have traced? | could I have been tracing? could you have been tracing? could she have been tracing? could we have been tracing? could you have been tracing? could they have been tracing? |
Simple form | V-ing form |
could I not trace? could you not trace? could she not trace? could we not trace? could you not trace? could they not trace? | could I not be tracing? could you not be tracing? could she not be tracing? could we not be tracing? could you not be tracing? could they not be tracing? |
Perfect | V-ing perfect |
could I not have traced? could you not have traced? could she not have traced? could we not have traced? could you not have traced? could they not have traced? | could I not have been tracing? could you not have been tracing? could she not have been tracing? could we not have been tracing? could you not have been tracing? could they not have been tracing? |