I can snoop you can snoop he can snoop we can snoop you can snoop they can snoop
V-ing form
I can be snooping you can be snooping he can be snooping we can be snooping you can be snooping they can be snooping
Perfect
I can have snooped you can have snooped he can have snooped we can have snooped you can have snooped they can have snooped
V-ing perfect
I can have been snooping you can have been snooping he can have been snooping we can have been snooping you can have been snooping they can have been snooping
Negation
Simple form
I can't snoop you can't snoop he can't snoop we can't snoop you can't snoop they can't snoop
V-ing form
I can't be snooping you can't be snooping he can't be snooping we can't be snooping you can't be snooping they can't be snooping
Perfect
I can't have snooped you can't have snooped he can't have snooped we can't have snooped you can't have snooped they can't have snooped
V-ing perfect
I can't have been snooping you can't have been snooping he can't have been snooping we can't have been snooping you can't have been snooping they can't have been snooping
Interrogative form
Simple form
can I snoop? can you snoop? can he snoop? can we snoop? can you snoop? can they snoop?
V-ing form
can I be snooping? can you be snooping? can he be snooping? can we be snooping? can you be snooping? can they be snooping?
Perfect
can I have snooped? can you have snooped? can he have snooped? can we have snooped? can you have snooped? can they have snooped?
V-ing perfect
can I have been snooping? can you have been snooping? can he have been snooping? can we have been snooping? can you have been snooping? can they have been snooping?
Interro-negative form
Simple form
can't I snoop? can't you snoop? can't he snoop? can't we snoop? can't you snoop? can't they snoop?
V-ing form
can't I be snooping? can't you be snooping? can't he be snooping? can't we be snooping? can't you be snooping? can't they be snooping?
Perfect
can't I have snooped? can't you have snooped? can't he have snooped? can't we have snooped? can't you have snooped? can't they have snooped?
V-ing perfect
can't I have been snooping? can't you have been snooping? can't he have been snooping? can't we have been snooping? can't you have been snooping? can't they have been snooping?