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 couldn't beeswax you couldn't beeswax he couldn't beeswax we couldn't beeswax you couldn't beeswax they couldn't beeswax
V-ing form
I couldn't be beeswaxing you couldn't be beeswaxing he couldn't be beeswaxing we couldn't be beeswaxing you couldn't be beeswaxing they couldn't be beeswaxing
Perfect
I couldn't have beeswaxed you couldn't have beeswaxed he couldn't have beeswaxed we couldn't have beeswaxed you couldn't have beeswaxed they couldn't have beeswaxed
V-ing perfect
I couldn't have been beeswaxing you couldn't have been beeswaxing he couldn't have been beeswaxing we couldn't have been beeswaxing you couldn't have been beeswaxing they couldn't 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
couldn't I beeswax? couldn't you beeswax? couldn't he beeswax? couldn't we beeswax? couldn't you beeswax? couldn't they beeswax?
V-ing form
couldn't I be beeswaxing? couldn't you be beeswaxing? couldn't he be beeswaxing? couldn't we be beeswaxing? couldn't you be beeswaxing? couldn't they be beeswaxing?
Perfect
couldn't I have beeswaxed? couldn't you have beeswaxed? couldn't he have beeswaxed? couldn't we have beeswaxed? couldn't you have beeswaxed? couldn't they have beeswaxed?
V-ing perfect
couldn't I have been beeswaxing? couldn't you have been beeswaxing? couldn't he have been beeswaxing? couldn't we have been beeswaxing? couldn't you have been beeswaxing? couldn't they have been beeswaxing?