English verb conjugation
CAN SUN

Regular verb: sun - sunned - sunned

Affirmation

Simple form	V-ing form
I can sun you can sun he can sun we can sun you can sun they can sun	I can be sunning you can be sunning he can be sunning we can be sunning you can be sunning they can be sunning
Perfect	V-ing perfect
I can have sunned you can have sunned he can have sunned we can have sunned you can have sunned they can have sunned	I can have been sunning you can have been sunning he can have been sunning we can have been sunning you can have been sunning they can have been sunning

Negation

Simple form	V-ing form
I can't sun you can't sun he can't sun we can't sun you can't sun they can't sun	I can't be sunning you can't be sunning he can't be sunning we can't be sunning you can't be sunning they can't be sunning
Perfect	V-ing perfect
I can't have sunned you can't have sunned he can't have sunned we can't have sunned you can't have sunned they can't have sunned	I can't have been sunning you can't have been sunning he can't have been sunning we can't have been sunning you can't have been sunning they can't have been sunning

Interrogative form

Simple form	V-ing form
can I sun? can you sun? can he sun? can we sun? can you sun? can they sun?	can I be sunning? can you be sunning? can he be sunning? can we be sunning? can you be sunning? can they be sunning?
Perfect	V-ing perfect
can I have sunned? can you have sunned? can he have sunned? can we have sunned? can you have sunned? can they have sunned?	can I have been sunning? can you have been sunning? can he have been sunning? can we have been sunning? can you have been sunning? can they have been sunning?

Interro-negative form

Simple form	V-ing form
can't I sun? can't you sun? can't he sun? can't we sun? can't you sun? can't they sun?	can't I be sunning? can't you be sunning? can't he be sunning? can't we be sunning? can't you be sunning? can't they be sunning?
Perfect	V-ing perfect
can't I have sunned? can't you have sunned? can't he have sunned? can't we have sunned? can't you have sunned? can't they have sunned?	can't I have been sunning? can't you have been sunning? can't he have been sunning? can't we have been sunning? can't you have been sunning? can't they have been sunning?