I could beeswax you could beeswax he could beeswax we could beeswax you could beeswax they could beeswax
V-ing form
I could be beeswaxing you could be beeswaxing he could be beeswaxing we could be beeswaxing you could be beeswaxing they could be beeswaxing
Perfect
I could have beeswaxed you could have beeswaxed he could have beeswaxed we could have beeswaxed you could have beeswaxed they could have beeswaxed
V-ing perfect
I could have been beeswaxing you could have been beeswaxing he could have been beeswaxing we could have been beeswaxing you could have been beeswaxing they could have been beeswaxing
Negation
Simple form
I could not beeswax you could not beeswax he could not beeswax we could not beeswax you could not beeswax they could not beeswax
V-ing form
I could not be beeswaxing you could not be beeswaxing he could not be beeswaxing we could not be beeswaxing you could not be beeswaxing they could not be beeswaxing
Perfect
I could not have beeswaxed you could not have beeswaxed he could not have beeswaxed we could not have beeswaxed you could not have beeswaxed they could not have beeswaxed
V-ing perfect
I could not have been beeswaxing you could not have been beeswaxing he could not have been beeswaxing we could not have been beeswaxing you could not have been beeswaxing they could not have been beeswaxing
Interrogative form
Simple form
could I beeswax? could you beeswax? could he beeswax? could we beeswax? could you beeswax? could they beeswax?
V-ing form
could I be beeswaxing? could you be beeswaxing? could he be beeswaxing? could we be beeswaxing? could you be beeswaxing? could they be beeswaxing?
Perfect
could I have beeswaxed? could you have beeswaxed? could he have beeswaxed? could we have beeswaxed? could you have beeswaxed? could they have beeswaxed?
V-ing perfect
could I have been beeswaxing? could you have been beeswaxing? could he have been beeswaxing? could we have been beeswaxing? could you have been beeswaxing? could they have been beeswaxing?
Interro-negative form
Simple form
could I not beeswax? could you not beeswax? could he not beeswax? could we not beeswax? could you not beeswax? could they not beeswax?
V-ing form
could I not be beeswaxing? could you not be beeswaxing? could he not be beeswaxing? could we not be beeswaxing? could you not be beeswaxing? could they not be beeswaxing?
Perfect
could I not have beeswaxed? could you not have beeswaxed? could he not have beeswaxed? could we not have beeswaxed? could you not have beeswaxed? could they not have beeswaxed?
V-ing perfect
could I not have been beeswaxing? could you not have been beeswaxing? could he not have been beeswaxing? could we not have been beeswaxing? could you not have been beeswaxing? could they not have been beeswaxing?