English verb conjugation
CAN MILK

Regular verb: milk - milked - milked

Affirmation

Simple form	V-ing form
I can milk you can milk he can milk we can milk you can milk they can milk	I can be milking you can be milking he can be milking we can be milking you can be milking they can be milking
Perfect	V-ing perfect
I can have milked you can have milked he can have milked we can have milked you can have milked they can have milked	I can have been milking you can have been milking he can have been milking we can have been milking you can have been milking they can have been milking

Negation

Simple form	V-ing form
I can't milk you can't milk he can't milk we can't milk you can't milk they can't milk	I can't be milking you can't be milking he can't be milking we can't be milking you can't be milking they can't be milking
Perfect	V-ing perfect
I can't have milked you can't have milked he can't have milked we can't have milked you can't have milked they can't have milked	I can't have been milking you can't have been milking he can't have been milking we can't have been milking you can't have been milking they can't have been milking

Interrogative form

Simple form	V-ing form
can I milk? can you milk? can he milk? can we milk? can you milk? can they milk?	can I be milking? can you be milking? can he be milking? can we be milking? can you be milking? can they be milking?
Perfect	V-ing perfect
can I have milked? can you have milked? can he have milked? can we have milked? can you have milked? can they have milked?	can I have been milking? can you have been milking? can he have been milking? can we have been milking? can you have been milking? can they have been milking?

Interro-negative form

Simple form	V-ing form
can't I milk? can't you milk? can't he milk? can't we milk? can't you milk? can't they milk?	can't I be milking? can't you be milking? can't he be milking? can't we be milking? can't you be milking? can't they be milking?
Perfect	V-ing perfect
can't I have milked? can't you have milked? can't he have milked? can't we have milked? can't you have milked? can't they have milked?	can't I have been milking? can't you have been milking? can't he have been milking? can't we have been milking? can't you have been milking? can't they have been milking?