English verb conjugation
CAN LEK

Regular verb: lek - leked - leked

Affirmation

Simple form	V-ing form
I can lek you can lek he can lek we can lek you can lek they can lek	I can be leking you can be leking he can be leking we can be leking you can be leking they can be leking
Perfect	V-ing perfect
I can have leked you can have leked he can have leked we can have leked you can have leked they can have leked	I can have been leking you can have been leking he can have been leking we can have been leking you can have been leking they can have been leking

Negation

Simple form	V-ing form
I cannot lek you cannot lek he cannot lek we cannot lek you cannot lek they cannot lek	I cannot be leking you cannot be leking he cannot be leking we cannot be leking you cannot be leking they cannot be leking
Perfect	V-ing perfect
I cannot have leked you cannot have leked he cannot have leked we cannot have leked you cannot have leked they cannot have leked	I cannot have been leking you cannot have been leking he cannot have been leking we cannot have been leking you cannot have been leking they cannot have been leking

Interrogative form

Simple form	V-ing form
can I lek? can you lek? can he lek? can we lek? can you lek? can they lek?	can I be leking? can you be leking? can he be leking? can we be leking? can you be leking? can they be leking?
Perfect	V-ing perfect
can I have leked? can you have leked? can he have leked? can we have leked? can you have leked? can they have leked?	can I have been leking? can you have been leking? can he have been leking? can we have been leking? can you have been leking? can they have been leking?

Interro-negative form

Simple form	V-ing form
can I not lek? can you not lek? can he not lek? can we not lek? can you not lek? can they not lek?	can I not be leking? can you not be leking? can he not be leking? can we not be leking? can you not be leking? can they not be leking?
Perfect	V-ing perfect
can I not have leked? can you not have leked? can he not have leked? can we not have leked? can you not have leked? can they not have leked?	can I not have been leking? can you not have been leking? can he not have been leking? can we not have been leking? can you not have been leking? can they not have been leking?