I could receipt you could receipt he could receipt we could receipt you could receipt they could receipt
V-ing form
I could be receipting you could be receipting he could be receipting we could be receipting you could be receipting they could be receipting
Perfect
I could have receipted you could have receipted he could have receipted we could have receipted you could have receipted they could have receipted
V-ing perfect
I could have been receipting you could have been receipting he could have been receipting we could have been receipting you could have been receipting they could have been receipting
Negation
Simple form
I could not receipt you could not receipt he could not receipt we could not receipt you could not receipt they could not receipt
V-ing form
I could not be receipting you could not be receipting he could not be receipting we could not be receipting you could not be receipting they could not be receipting
Perfect
I could not have receipted you could not have receipted he could not have receipted we could not have receipted you could not have receipted they could not have receipted
V-ing perfect
I could not have been receipting you could not have been receipting he could not have been receipting we could not have been receipting you could not have been receipting they could not have been receipting
Interrogative form
Simple form
could I receipt? could you receipt? could he receipt? could we receipt? could you receipt? could they receipt?
V-ing form
could I be receipting? could you be receipting? could he be receipting? could we be receipting? could you be receipting? could they be receipting?
Perfect
could I have receipted? could you have receipted? could he have receipted? could we have receipted? could you have receipted? could they have receipted?
V-ing perfect
could I have been receipting? could you have been receipting? could he have been receipting? could we have been receipting? could you have been receipting? could they have been receipting?
Interro-negative form
Simple form
could I not receipt? could you not receipt? could he not receipt? could we not receipt? could you not receipt? could they not receipt?
V-ing form
could I not be receipting? could you not be receipting? could he not be receipting? could we not be receipting? could you not be receipting? could they not be receipting?
Perfect
could I not have receipted? could you not have receipted? could he not have receipted? could we not have receipted? could you not have receipted? could they not have receipted?
V-ing perfect
could I not have been receipting? could you not have been receipting? could he not have been receipting? could we not have been receipting? could you not have been receipting? could they not have been receipting?