I could evidence you could evidence he could evidence we could evidence you could evidence they could evidence
V-ing form
I could be evidencing you could be evidencing he could be evidencing we could be evidencing you could be evidencing they could be evidencing
Perfect
I could have evidenced you could have evidenced he could have evidenced we could have evidenced you could have evidenced they could have evidenced
V-ing perfect
I could have been evidencing you could have been evidencing he could have been evidencing we could have been evidencing you could have been evidencing they could have been evidencing
Negation
Simple form
I could not evidence you could not evidence he could not evidence we could not evidence you could not evidence they could not evidence
V-ing form
I could not be evidencing you could not be evidencing he could not be evidencing we could not be evidencing you could not be evidencing they could not be evidencing
Perfect
I could not have evidenced you could not have evidenced he could not have evidenced we could not have evidenced you could not have evidenced they could not have evidenced
V-ing perfect
I could not have been evidencing you could not have been evidencing he could not have been evidencing we could not have been evidencing you could not have been evidencing they could not have been evidencing
Interrogative form
Simple form
could I evidence? could you evidence? could he evidence? could we evidence? could you evidence? could they evidence?
V-ing form
could I be evidencing? could you be evidencing? could he be evidencing? could we be evidencing? could you be evidencing? could they be evidencing?
Perfect
could I have evidenced? could you have evidenced? could he have evidenced? could we have evidenced? could you have evidenced? could they have evidenced?
V-ing perfect
could I have been evidencing? could you have been evidencing? could he have been evidencing? could we have been evidencing? could you have been evidencing? could they have been evidencing?
Interro-negative form
Simple form
could I not evidence? could you not evidence? could he not evidence? could we not evidence? could you not evidence? could they not evidence?
V-ing form
could I not be evidencing? could you not be evidencing? could he not be evidencing? could we not be evidencing? could you not be evidencing? could they not be evidencing?
Perfect
could I not have evidenced? could you not have evidenced? could he not have evidenced? could we not have evidenced? could you not have evidenced? could they not have evidenced?
V-ing perfect
could I not have been evidencing? could you not have been evidencing? could he not have been evidencing? could we not have been evidencing? could you not have been evidencing? could they not have been evidencing?