I can cry you can cry he can cry we can cry you can cry they can cry
V-ing form
I can be crying you can be crying he can be crying we can be crying you can be crying they can be crying
Perfect
I can have cried you can have cried he can have cried we can have cried you can have cried they can have cried
V-ing perfect
I can have been crying you can have been crying he can have been crying we can have been crying you can have been crying they can have been crying
Negation
Simple form
I can't cry you can't cry he can't cry we can't cry you can't cry they can't cry
V-ing form
I can't be crying you can't be crying he can't be crying we can't be crying you can't be crying they can't be crying
Perfect
I can't have cried you can't have cried he can't have cried we can't have cried you can't have cried they can't have cried
V-ing perfect
I can't have been crying you can't have been crying he can't have been crying we can't have been crying you can't have been crying they can't have been crying
Interrogative form
Simple form
can I cry? can you cry? can he cry? can we cry? can you cry? can they cry?
V-ing form
can I be crying? can you be crying? can he be crying? can we be crying? can you be crying? can they be crying?
Perfect
can I have cried? can you have cried? can he have cried? can we have cried? can you have cried? can they have cried?
V-ing perfect
can I have been crying? can you have been crying? can he have been crying? can we have been crying? can you have been crying? can they have been crying?
Interro-negative form
Simple form
can't I cry? can't you cry? can't he cry? can't we cry? can't you cry? can't they cry?
V-ing form
can't I be crying? can't you be crying? can't he be crying? can't we be crying? can't you be crying? can't they be crying?
Perfect
can't I have cried? can't you have cried? can't he have cried? can't we have cried? can't you have cried? can't they have cried?
V-ing perfect
can't I have been crying? can't you have been crying? can't he have been crying? can't we have been crying? can't you have been crying? can't they have been crying?