I can evaluate you can evaluate he can evaluate we can evaluate you can evaluate they can evaluate
V-ing form
I can be evaluating you can be evaluating he can be evaluating we can be evaluating you can be evaluating they can be evaluating
Perfect
I can have evaluated you can have evaluated he can have evaluated we can have evaluated you can have evaluated they can have evaluated
V-ing perfect
I can have been evaluating you can have been evaluating he can have been evaluating we can have been evaluating you can have been evaluating they can have been evaluating
Negation
Simple form
I can't evaluate you can't evaluate he can't evaluate we can't evaluate you can't evaluate they can't evaluate
V-ing form
I can't be evaluating you can't be evaluating he can't be evaluating we can't be evaluating you can't be evaluating they can't be evaluating
Perfect
I can't have evaluated you can't have evaluated he can't have evaluated we can't have evaluated you can't have evaluated they can't have evaluated
V-ing perfect
I can't have been evaluating you can't have been evaluating he can't have been evaluating we can't have been evaluating you can't have been evaluating they can't have been evaluating
Interrogative form
Simple form
can I evaluate? can you evaluate? can he evaluate? can we evaluate? can you evaluate? can they evaluate?
V-ing form
can I be evaluating? can you be evaluating? can he be evaluating? can we be evaluating? can you be evaluating? can they be evaluating?
Perfect
can I have evaluated? can you have evaluated? can he have evaluated? can we have evaluated? can you have evaluated? can they have evaluated?
V-ing perfect
can I have been evaluating? can you have been evaluating? can he have been evaluating? can we have been evaluating? can you have been evaluating? can they have been evaluating?
Interro-negative form
Simple form
can't I evaluate? can't you evaluate? can't he evaluate? can't we evaluate? can't you evaluate? can't they evaluate?
V-ing form
can't I be evaluating? can't you be evaluating? can't he be evaluating? can't we be evaluating? can't you be evaluating? can't they be evaluating?
Perfect
can't I have evaluated? can't you have evaluated? can't he have evaluated? can't we have evaluated? can't you have evaluated? can't they have evaluated?
V-ing perfect
can't I have been evaluating? can't you have been evaluating? can't he have been evaluating? can't we have been evaluating? can't you have been evaluating? can't they have been evaluating?