English verb conjugation
CAN STALK

Regular verb: stalk - stalked - stalked

Affirmation

Simple form	V-ing form
I can stalk you can stalk she can stalk we can stalk you can stalk they can stalk	I can be stalking you can be stalking she can be stalking we can be stalking you can be stalking they can be stalking
Perfect	V-ing perfect
I can have stalked you can have stalked she can have stalked we can have stalked you can have stalked they can have stalked	I can have been stalking you can have been stalking she can have been stalking we can have been stalking you can have been stalking they can have been stalking

Negation

Simple form	V-ing form
I cannot stalk you cannot stalk she cannot stalk we cannot stalk you cannot stalk they cannot stalk	I cannot be stalking you cannot be stalking she cannot be stalking we cannot be stalking you cannot be stalking they cannot be stalking
Perfect	V-ing perfect
I cannot have stalked you cannot have stalked she cannot have stalked we cannot have stalked you cannot have stalked they cannot have stalked	I cannot have been stalking you cannot have been stalking she cannot have been stalking we cannot have been stalking you cannot have been stalking they cannot have been stalking

Interrogative form

Simple form	V-ing form
can I stalk? can you stalk? can she stalk? can we stalk? can you stalk? can they stalk?	can I be stalking? can you be stalking? can she be stalking? can we be stalking? can you be stalking? can they be stalking?
Perfect	V-ing perfect
can I have stalked? can you have stalked? can she have stalked? can we have stalked? can you have stalked? can they have stalked?	can I have been stalking? can you have been stalking? can she have been stalking? can we have been stalking? can you have been stalking? can they have been stalking?

Interro-negative form

Simple form	V-ing form
can I not stalk? can you not stalk? can she not stalk? can we not stalk? can you not stalk? can they not stalk?	can I not be stalking? can you not be stalking? can she not be stalking? can we not be stalking? can you not be stalking? can they not be stalking?
Perfect	V-ing perfect
can I not have stalked? can you not have stalked? can she not have stalked? can we not have stalked? can you not have stalked? can they not have stalked?	can I not have been stalking? can you not have been stalking? can she not have been stalking? can we not have been stalking? can you not have been stalking? can they not have been stalking?