I can butylate you can butylate he can butylate we can butylate you can butylate they can butylate
V-ing form
I can be butylating you can be butylating he can be butylating we can be butylating you can be butylating they can be butylating
Perfect
I can have butylated you can have butylated he can have butylated we can have butylated you can have butylated they can have butylated
V-ing perfect
I can have been butylating you can have been butylating he can have been butylating we can have been butylating you can have been butylating they can have been butylating
Negation
Simple form
I can't butylate you can't butylate he can't butylate we can't butylate you can't butylate they can't butylate
V-ing form
I can't be butylating you can't be butylating he can't be butylating we can't be butylating you can't be butylating they can't be butylating
Perfect
I can't have butylated you can't have butylated he can't have butylated we can't have butylated you can't have butylated they can't have butylated
V-ing perfect
I can't have been butylating you can't have been butylating he can't have been butylating we can't have been butylating you can't have been butylating they can't have been butylating
Interrogative form
Simple form
can I butylate? can you butylate? can he butylate? can we butylate? can you butylate? can they butylate?
V-ing form
can I be butylating? can you be butylating? can he be butylating? can we be butylating? can you be butylating? can they be butylating?
Perfect
can I have butylated? can you have butylated? can he have butylated? can we have butylated? can you have butylated? can they have butylated?
V-ing perfect
can I have been butylating? can you have been butylating? can he have been butylating? can we have been butylating? can you have been butylating? can they have been butylating?
Interro-negative form
Simple form
can't I butylate? can't you butylate? can't he butylate? can't we butylate? can't you butylate? can't they butylate?
V-ing form
can't I be butylating? can't you be butylating? can't he be butylating? can't we be butylating? can't you be butylating? can't they be butylating?
Perfect
can't I have butylated? can't you have butylated? can't he have butylated? can't we have butylated? can't you have butylated? can't they have butylated?
V-ing perfect
can't I have been butylating? can't you have been butylating? can't he have been butylating? can't we have been butylating? can't you have been butylating? can't they have been butylating?