English verb conjugation
COULD UPSET UPSET

Regular verb: upset upset - upset upseted - upset upseted

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could upset upset you could upset upset he could upset upset we could upset upset you could upset upset they could upset upset	I could be upset upseting you could be upset upseting he could be upset upseting we could be upset upseting you could be upset upseting they could be upset upseting
Perfect	V-ing perfect
I could have upset upseted you could have upset upseted he could have upset upseted we could have upset upseted you could have upset upseted they could have upset upseted	I could have been upset upseting you could have been upset upseting he could have been upset upseting we could have been upset upseting you could have been upset upseting they could have been upset upseting

Negation

Simple form	V-ing form
I couldn't upset upset you couldn't upset upset he couldn't upset upset we couldn't upset upset you couldn't upset upset they couldn't upset upset	I couldn't be upset upseting you couldn't be upset upseting he couldn't be upset upseting we couldn't be upset upseting you couldn't be upset upseting they couldn't be upset upseting
Perfect	V-ing perfect
I couldn't have upset upseted you couldn't have upset upseted he couldn't have upset upseted we couldn't have upset upseted you couldn't have upset upseted they couldn't have upset upseted	I couldn't have been upset upseting you couldn't have been upset upseting he couldn't have been upset upseting we couldn't have been upset upseting you couldn't have been upset upseting they couldn't have been upset upseting

Interrogative form

Simple form	V-ing form
could I upset upset? could you upset upset? could he upset upset? could we upset upset? could you upset upset? could they upset upset?	could I be upset upseting? could you be upset upseting? could he be upset upseting? could we be upset upseting? could you be upset upseting? could they be upset upseting?
Perfect	V-ing perfect
could I have upset upseted? could you have upset upseted? could he have upset upseted? could we have upset upseted? could you have upset upseted? could they have upset upseted?	could I have been upset upseting? could you have been upset upseting? could he have been upset upseting? could we have been upset upseting? could you have been upset upseting? could they have been upset upseting?

Interro-negative form

Simple form	V-ing form
couldn't I upset upset? couldn't you upset upset? couldn't he upset upset? couldn't we upset upset? couldn't you upset upset? couldn't they upset upset?	couldn't I be upset upseting? couldn't you be upset upseting? couldn't he be upset upseting? couldn't we be upset upseting? couldn't you be upset upseting? couldn't they be upset upseting?
Perfect	V-ing perfect
couldn't I have upset upseted? couldn't you have upset upseted? couldn't he have upset upseted? couldn't we have upset upseted? couldn't you have upset upseted? couldn't they have upset upseted?	couldn't I have been upset upseting? couldn't you have been upset upseting? couldn't he have been upset upseting? couldn't we have been upset upseting? couldn't you have been upset upseting? couldn't they have been upset upseting?