English verb conjugation
CAN PIKE

Regular verb: pike - piked - piked

Affirmation

Simple form	V-ing form
I can pike you can pike he can pike we can pike you can pike they can pike	I can be piking you can be piking he can be piking we can be piking you can be piking they can be piking
Perfect	V-ing perfect
I can have piked you can have piked he can have piked we can have piked you can have piked they can have piked	I can have been piking you can have been piking he can have been piking we can have been piking you can have been piking they can have been piking

Negation

Simple form	V-ing form
I cannot pike you cannot pike he cannot pike we cannot pike you cannot pike they cannot pike	I cannot be piking you cannot be piking he cannot be piking we cannot be piking you cannot be piking they cannot be piking
Perfect	V-ing perfect
I cannot have piked you cannot have piked he cannot have piked we cannot have piked you cannot have piked they cannot have piked	I cannot have been piking you cannot have been piking he cannot have been piking we cannot have been piking you cannot have been piking they cannot have been piking

Interrogative form

Simple form	V-ing form
can I pike? can you pike? can he pike? can we pike? can you pike? can they pike?	can I be piking? can you be piking? can he be piking? can we be piking? can you be piking? can they be piking?
Perfect	V-ing perfect
can I have piked? can you have piked? can he have piked? can we have piked? can you have piked? can they have piked?	can I have been piking? can you have been piking? can he have been piking? can we have been piking? can you have been piking? can they have been piking?

Interro-negative form

Simple form	V-ing form
can I not pike? can you not pike? can he not pike? can we not pike? can you not pike? can they not pike?	can I not be piking? can you not be piking? can he not be piking? can we not be piking? can you not be piking? can they not be piking?
Perfect	V-ing perfect
can I not have piked? can you not have piked? can he not have piked? can we not have piked? can you not have piked? can they not have piked?	can I not have been piking? can you not have been piking? can he not have been piking? can we not have been piking? can you not have been piking? can they not have been piking?