English verb conjugation
CAN SUN

Regular verb: sun - sunned - sunned

Affirmation

Simple form	V-ing form
I can sun you can sun she can sun we can sun you can sun they can sun	I can be sunning you can be sunning she 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 she 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 she 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 cannot sun you cannot sun she cannot sun we cannot sun you cannot sun they cannot sun	I cannot be sunning you cannot be sunning she cannot be sunning we cannot be sunning you cannot be sunning they cannot be sunning
Perfect	V-ing perfect
I cannot have sunned you cannot have sunned she cannot have sunned we cannot have sunned you cannot have sunned they cannot have sunned	I cannot have been sunning you cannot have been sunning she cannot have been sunning we cannot have been sunning you cannot have been sunning they cannot have been sunning

Interrogative form

Simple form	V-ing form
can I sun? can you sun? can she sun? can we sun? can you sun? can they sun?	can I be sunning? can you be sunning? can she 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 she 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 she 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 I not sun? can you not sun? can she not sun? can we not sun? can you not sun? can they not sun?	can I not be sunning? can you not be sunning? can she not be sunning? can we not be sunning? can you not be sunning? can they not be sunning?
Perfect	V-ing perfect
can I not have sunned? can you not have sunned? can she not have sunned? can we not have sunned? can you not have sunned? can they not have sunned?	can I not have been sunning? can you not have been sunning? can she not have been sunning? can we not have been sunning? can you not have been sunning? can they not have been sunning?