I can mutate you can mutate he can mutate we can mutate you can mutate they can mutate
V-ing form
I can be mutating you can be mutating he can be mutating we can be mutating you can be mutating they can be mutating
Perfect
I can have mutated you can have mutated he can have mutated we can have mutated you can have mutated they can have mutated
V-ing perfect
I can have been mutating you can have been mutating he can have been mutating we can have been mutating you can have been mutating they can have been mutating
Negation
Simple form
I can't mutate you can't mutate he can't mutate we can't mutate you can't mutate they can't mutate
V-ing form
I can't be mutating you can't be mutating he can't be mutating we can't be mutating you can't be mutating they can't be mutating
Perfect
I can't have mutated you can't have mutated he can't have mutated we can't have mutated you can't have mutated they can't have mutated
V-ing perfect
I can't have been mutating you can't have been mutating he can't have been mutating we can't have been mutating you can't have been mutating they can't have been mutating
Interrogative form
Simple form
can I mutate? can you mutate? can he mutate? can we mutate? can you mutate? can they mutate?
V-ing form
can I be mutating? can you be mutating? can he be mutating? can we be mutating? can you be mutating? can they be mutating?
Perfect
can I have mutated? can you have mutated? can he have mutated? can we have mutated? can you have mutated? can they have mutated?
V-ing perfect
can I have been mutating? can you have been mutating? can he have been mutating? can we have been mutating? can you have been mutating? can they have been mutating?
Interro-negative form
Simple form
can't I mutate? can't you mutate? can't he mutate? can't we mutate? can't you mutate? can't they mutate?
V-ing form
can't I be mutating? can't you be mutating? can't he be mutating? can't we be mutating? can't you be mutating? can't they be mutating?
Perfect
can't I have mutated? can't you have mutated? can't he have mutated? can't we have mutated? can't you have mutated? can't they have mutated?
V-ing perfect
can't I have been mutating? can't you have been mutating? can't he have been mutating? can't we have been mutating? can't you have been mutating? can't they have been mutating?