English verb conjugation
CAN STAY

Regular verb: stay - stayed - stayed

Affirmation

Simple form	V-ing form
I can stay you can stay he can stay we can stay you can stay they can stay	I can be staying you can be staying he can be staying we can be staying you can be staying they can be staying
Perfect	V-ing perfect
I can have stayed you can have stayed he can have stayed we can have stayed you can have stayed they can have stayed	I can have been staying you can have been staying he can have been staying we can have been staying you can have been staying they can have been staying

Negation

Simple form	V-ing form
I can't stay you can't stay he can't stay we can't stay you can't stay they can't stay	I can't be staying you can't be staying he can't be staying we can't be staying you can't be staying they can't be staying
Perfect	V-ing perfect
I can't have stayed you can't have stayed he can't have stayed we can't have stayed you can't have stayed they can't have stayed	I can't have been staying you can't have been staying he can't have been staying we can't have been staying you can't have been staying they can't have been staying

Interrogative form

Simple form	V-ing form
can I stay? can you stay? can he stay? can we stay? can you stay? can they stay?	can I be staying? can you be staying? can he be staying? can we be staying? can you be staying? can they be staying?
Perfect	V-ing perfect
can I have stayed? can you have stayed? can he have stayed? can we have stayed? can you have stayed? can they have stayed?	can I have been staying? can you have been staying? can he have been staying? can we have been staying? can you have been staying? can they have been staying?

Interro-negative form

Simple form	V-ing form
can't I stay? can't you stay? can't he stay? can't we stay? can't you stay? can't they stay?	can't I be staying? can't you be staying? can't he be staying? can't we be staying? can't you be staying? can't they be staying?
Perfect	V-ing perfect
can't I have stayed? can't you have stayed? can't he have stayed? can't we have stayed? can't you have stayed? can't they have stayed?	can't I have been staying? can't you have been staying? can't he have been staying? can't we have been staying? can't you have been staying? can't they have been staying?