English verb conjugation
CAN UPSET

Irregular verb: upset - upset - upset

Affirmation

Simple form	V-ing form
I can upset you can upset he can upset we can upset you can upset they can upset	I can be upsetting you can be upsetting he can be upsetting we can be upsetting you can be upsetting they can be upsetting
Perfect	V-ing perfect
I can have upset you can have upset he can have upset we can have upset you can have upset they can have upset	I can have been upsetting you can have been upsetting he can have been upsetting we can have been upsetting you can have been upsetting they can have been upsetting

Negation

Simple form	V-ing form
I can't upset you can't upset he can't upset we can't upset you can't upset they can't upset	I can't be upsetting you can't be upsetting he can't be upsetting we can't be upsetting you can't be upsetting they can't be upsetting
Perfect	V-ing perfect
I can't have upset you can't have upset he can't have upset we can't have upset you can't have upset they can't have upset	I can't have been upsetting you can't have been upsetting he can't have been upsetting we can't have been upsetting you can't have been upsetting they can't have been upsetting

Interrogative form

Simple form	V-ing form
can I upset? can you upset? can he upset? can we upset? can you upset? can they upset?	can I be upsetting? can you be upsetting? can he be upsetting? can we be upsetting? can you be upsetting? can they be upsetting?
Perfect	V-ing perfect
can I have upset? can you have upset? can he have upset? can we have upset? can you have upset? can they have upset?	can I have been upsetting? can you have been upsetting? can he have been upsetting? can we have been upsetting? can you have been upsetting? can they have been upsetting?

Interro-negative form

Simple form	V-ing form
can't I upset? can't you upset? can't he upset? can't we upset? can't you upset? can't they upset?	can't I be upsetting? can't you be upsetting? can't he be upsetting? can't we be upsetting? can't you be upsetting? can't they be upsetting?
Perfect	V-ing perfect
can't I have upset? can't you have upset? can't he have upset? can't we have upset? can't you have upset? can't they have upset?	can't I have been upsetting? can't you have been upsetting? can't he have been upsetting? can't we have been upsetting? can't you have been upsetting? can't they have been upsetting?