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 cannot peek you cannot peek he cannot peek we cannot peek you cannot peek they cannot peek	I cannot be peeking you cannot be peeking he cannot be peeking we cannot be peeking you cannot be peeking they cannot be peeking
Perfect	V-ing perfect
I cannot have peeked you cannot have peeked he cannot have peeked we cannot have peeked you cannot have peeked they cannot have peeked	I cannot have been peeking you cannot have been peeking he cannot have been peeking we cannot have been peeking you cannot have been peeking they cannot 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 I not peek? can you not peek? can he not peek? can we not peek? can you not peek? can they not peek?	can I not be peeking? can you not be peeking? can he not be peeking? can we not be peeking? can you not be peeking? can they not be peeking?
Perfect	V-ing perfect
can I not have peeked? can you not have peeked? can he not have peeked? can we not have peeked? can you not have peeked? can they not have peeked?	can I not have been peeking? can you not have been peeking? can he not have been peeking? can we not have been peeking? can you not have been peeking? can they not have been peeking?