English verb conjugation
CAN YANK

Regular verb: yank - yanked - yanked

Affirmation

Simple form	V-ing form
I can yank you can yank he can yank we can yank you can yank they can yank	I can be yanking you can be yanking he can be yanking we can be yanking you can be yanking they can be yanking
Perfect	V-ing perfect
I can have yanked you can have yanked he can have yanked we can have yanked you can have yanked they can have yanked	I can have been yanking you can have been yanking he can have been yanking we can have been yanking you can have been yanking they can have been yanking

Negation

Simple form	V-ing form
I can't yank you can't yank he can't yank we can't yank you can't yank they can't yank	I can't be yanking you can't be yanking he can't be yanking we can't be yanking you can't be yanking they can't be yanking
Perfect	V-ing perfect
I can't have yanked you can't have yanked he can't have yanked we can't have yanked you can't have yanked they can't have yanked	I can't have been yanking you can't have been yanking he can't have been yanking we can't have been yanking you can't have been yanking they can't have been yanking

Interrogative form

Simple form	V-ing form
can I yank? can you yank? can he yank? can we yank? can you yank? can they yank?	can I be yanking? can you be yanking? can he be yanking? can we be yanking? can you be yanking? can they be yanking?
Perfect	V-ing perfect
can I have yanked? can you have yanked? can he have yanked? can we have yanked? can you have yanked? can they have yanked?	can I have been yanking? can you have been yanking? can he have been yanking? can we have been yanking? can you have been yanking? can they have been yanking?

Interro-negative form

Simple form	V-ing form
can't I yank? can't you yank? can't he yank? can't we yank? can't you yank? can't they yank?	can't I be yanking? can't you be yanking? can't he be yanking? can't we be yanking? can't you be yanking? can't they be yanking?
Perfect	V-ing perfect
can't I have yanked? can't you have yanked? can't he have yanked? can't we have yanked? can't you have yanked? can't they have yanked?	can't I have been yanking? can't you have been yanking? can't he have been yanking? can't we have been yanking? can't you have been yanking? can't they have been yanking?