English verb conjugation
CAN PEEK

Regular verb: peek - peeked - peeked

Affirmation

Simple form	V-ing form
I can peek you can peek he can peek we can peek you can peek they can peek	I can be peeking you can be peeking he can be peeking we can be peeking you can be peeking they can be peeking
Perfect	V-ing perfect
I can have peeked you can have peeked he can have peeked we can have peeked you can have peeked they can have peeked	I can have been peeking you can have been peeking he can have been peeking we can have been peeking you can have been peeking they can have been peeking

Negation

Simple form	V-ing form
I can't peek you can't peek he can't peek we can't peek you can't peek they can't peek	I can't be peeking you can't be peeking he can't be peeking we can't be peeking you can't be peeking they can't be peeking
Perfect	V-ing perfect
I can't have peeked you can't have peeked he can't have peeked we can't have peeked you can't have peeked they can't have peeked	I can't have been peeking you can't have been peeking he can't have been peeking we can't have been peeking you can't have been peeking they can't have been peeking

Interrogative form

Simple form	V-ing form
can I peek? can you peek? can he peek? can we peek? can you peek? can they peek?	can I be peeking? can you be peeking? can he be peeking? can we be peeking? can you be peeking? can they be peeking?
Perfect	V-ing perfect
can I have peeked? can you have peeked? can he have peeked? can we have peeked? can you have peeked? can they have peeked?	can I have been peeking? can you have been peeking? can he have been peeking? can we have been peeking? can you have been peeking? can they have been peeking?

Interro-negative form

Simple form	V-ing form
can't I peek? can't you peek? can't he peek? can't we peek? can't you peek? can't they peek?	can't I be peeking? can't you be peeking? can't he be peeking? can't we be peeking? can't you be peeking? can't they be peeking?
Perfect	V-ing perfect
can't I have peeked? can't you have peeked? can't he have peeked? can't we have peeked? can't you have peeked? can't they have peeked?	can't I have been peeking? can't you have been peeking? can't he have been peeking? can't we have been peeking? can't you have been peeking? can't they have been peeking?