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 couldn't commiserate you couldn't commiserate he couldn't commiserate we couldn't commiserate you couldn't commiserate they couldn't commiserate
V-ing form
I couldn't be commiserating you couldn't be commiserating he couldn't be commiserating we couldn't be commiserating you couldn't be commiserating they couldn't be commiserating
Perfect
I couldn't have commiserated you couldn't have commiserated he couldn't have commiserated we couldn't have commiserated you couldn't have commiserated they couldn't have commiserated
V-ing perfect
I couldn't have been commiserating you couldn't have been commiserating he couldn't have been commiserating we couldn't have been commiserating you couldn't have been commiserating they couldn't 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
couldn't I commiserate? couldn't you commiserate? couldn't he commiserate? couldn't we commiserate? couldn't you commiserate? couldn't they commiserate?
V-ing form
couldn't I be commiserating? couldn't you be commiserating? couldn't he be commiserating? couldn't we be commiserating? couldn't you be commiserating? couldn't they be commiserating?
Perfect
couldn't I have commiserated? couldn't you have commiserated? couldn't he have commiserated? couldn't we have commiserated? couldn't you have commiserated? couldn't they have commiserated?
V-ing perfect
couldn't I have been commiserating? couldn't you have been commiserating? couldn't he have been commiserating? couldn't we have been commiserating? couldn't you have been commiserating? couldn't they have been commiserating?