I could commiserate you could commiserate he could commiserate we could commiserate you could commiserate they could commiserate
V-ing form
I could be commiserating you could be commiserating he could be commiserating we could be commiserating you could be commiserating they could be commiserating
Perfect
I could have commiserated you could have commiserated he could have commiserated we could have commiserated you could have commiserated they could have commiserated
V-ing perfect
I could have been commiserating you could have been commiserating he could have been commiserating we could have been commiserating you could have been commiserating they could have been commiserating
Negation
Simple form
I could not commiserate you could not commiserate he could not commiserate we could not commiserate you could not commiserate they could not commiserate
V-ing form
I could not be commiserating you could not be commiserating he could not be commiserating we could not be commiserating you could not be commiserating they could not be commiserating
Perfect
I could not have commiserated you could not have commiserated he could not have commiserated we could not have commiserated you could not have commiserated they could not have commiserated
V-ing perfect
I could not have been commiserating you could not have been commiserating he could not have been commiserating we could not have been commiserating you could not have been commiserating they could not have been commiserating
Interrogative form
Simple form
could I commiserate? could you commiserate? could he commiserate? could we commiserate? could you commiserate? could they commiserate?
V-ing form
could I be commiserating? could you be commiserating? could he be commiserating? could we be commiserating? could you be commiserating? could they be commiserating?
Perfect
could I have commiserated? could you have commiserated? could he have commiserated? could we have commiserated? could you have commiserated? could they have commiserated?
V-ing perfect
could I have been commiserating? could you have been commiserating? could he have been commiserating? could we have been commiserating? could you have been commiserating? could they have been commiserating?
Interro-negative form
Simple form
could I not commiserate? could you not commiserate? could he not commiserate? could we not commiserate? could you not commiserate? could they not commiserate?
V-ing form
could I not be commiserating? could you not be commiserating? could he not be commiserating? could we not be commiserating? could you not be commiserating? could they not be commiserating?
Perfect
could I not have commiserated? could you not have commiserated? could he not have commiserated? could we not have commiserated? could you not have commiserated? could they not have commiserated?
V-ing perfect
could I not have been commiserating? could you not have been commiserating? could he not have been commiserating? could we not have been commiserating? could you not have been commiserating? could they not have been commiserating?