I could absent you could absent he could absent we could absent you could absent they could absent
V-ing form
I could be absenting you could be absenting he could be absenting we could be absenting you could be absenting they could be absenting
Perfect
I could have absented you could have absented he could have absented we could have absented you could have absented they could have absented
V-ing perfect
I could have been absenting you could have been absenting he could have been absenting we could have been absenting you could have been absenting they could have been absenting
Negation
Simple form
I couldn't absent you couldn't absent he couldn't absent we couldn't absent you couldn't absent they couldn't absent
V-ing form
I couldn't be absenting you couldn't be absenting he couldn't be absenting we couldn't be absenting you couldn't be absenting they couldn't be absenting
Perfect
I couldn't have absented you couldn't have absented he couldn't have absented we couldn't have absented you couldn't have absented they couldn't have absented
V-ing perfect
I couldn't have been absenting you couldn't have been absenting he couldn't have been absenting we couldn't have been absenting you couldn't have been absenting they couldn't have been absenting
Interrogative form
Simple form
could I absent? could you absent? could he absent? could we absent? could you absent? could they absent?
V-ing form
could I be absenting? could you be absenting? could he be absenting? could we be absenting? could you be absenting? could they be absenting?
Perfect
could I have absented? could you have absented? could he have absented? could we have absented? could you have absented? could they have absented?
V-ing perfect
could I have been absenting? could you have been absenting? could he have been absenting? could we have been absenting? could you have been absenting? could they have been absenting?
Interro-negative form
Simple form
couldn't I absent? couldn't you absent? couldn't he absent? couldn't we absent? couldn't you absent? couldn't they absent?
V-ing form
couldn't I be absenting? couldn't you be absenting? couldn't he be absenting? couldn't we be absenting? couldn't you be absenting? couldn't they be absenting?
Perfect
couldn't I have absented? couldn't you have absented? couldn't he have absented? couldn't we have absented? couldn't you have absented? couldn't they have absented?
V-ing perfect
couldn't I have been absenting? couldn't you have been absenting? couldn't he have been absenting? couldn't we have been absenting? couldn't you have been absenting? couldn't they have been absenting?