I could trust you could trust he could trust we could trust you could trust they could trust
V-ing form
I could be trusting you could be trusting he could be trusting we could be trusting you could be trusting they could be trusting
Perfect
I could have trusted you could have trusted he could have trusted we could have trusted you could have trusted they could have trusted
V-ing perfect
I could have been trusting you could have been trusting he could have been trusting we could have been trusting you could have been trusting they could have been trusting
Negation
Simple form
I could not trust you could not trust he could not trust we could not trust you could not trust they could not trust
V-ing form
I could not be trusting you could not be trusting he could not be trusting we could not be trusting you could not be trusting they could not be trusting
Perfect
I could not have trusted you could not have trusted he could not have trusted we could not have trusted you could not have trusted they could not have trusted
V-ing perfect
I could not have been trusting you could not have been trusting he could not have been trusting we could not have been trusting you could not have been trusting they could not have been trusting
Interrogative form
Simple form
could I trust? could you trust? could he trust? could we trust? could you trust? could they trust?
V-ing form
could I be trusting? could you be trusting? could he be trusting? could we be trusting? could you be trusting? could they be trusting?
Perfect
could I have trusted? could you have trusted? could he have trusted? could we have trusted? could you have trusted? could they have trusted?
V-ing perfect
could I have been trusting? could you have been trusting? could he have been trusting? could we have been trusting? could you have been trusting? could they have been trusting?
Interro-negative form
Simple form
could I not trust? could you not trust? could he not trust? could we not trust? could you not trust? could they not trust?
V-ing form
could I not be trusting? could you not be trusting? could he not be trusting? could we not be trusting? could you not be trusting? could they not be trusting?
Perfect
could I not have trusted? could you not have trusted? could he not have trusted? could we not have trusted? could you not have trusted? could they not have trusted?
V-ing perfect
could I not have been trusting? could you not have been trusting? could he not have been trusting? could we not have been trusting? could you not have been trusting? could they not have been trusting?