Conjugação do verbo inglês
COULD ULCERATE

Verbo regular: ulcerate - ulcerated - ulcerated

Afirmação

Forma simple	Forma com V-ing
I could ulcerate you could ulcerate she could ulcerate we could ulcerate you could ulcerate they could ulcerate	I could be ulcerating you could be ulcerating she could be ulcerating we could be ulcerating you could be ulcerating they could be ulcerating
Perfeito	Perfeito com V-ing
I could have ulcerated you could have ulcerated she could have ulcerated we could have ulcerated you could have ulcerated they could have ulcerated	I could have been ulcerating you could have been ulcerating she could have been ulcerating we could have been ulcerating you could have been ulcerating they could have been ulcerating

Negação

Forma simple	Forma com V-ing
I couldn't ulcerate you couldn't ulcerate she couldn't ulcerate we couldn't ulcerate you couldn't ulcerate they couldn't ulcerate	I couldn't be ulcerating you couldn't be ulcerating she couldn't be ulcerating we couldn't be ulcerating you couldn't be ulcerating they couldn't be ulcerating
Perfeito	Perfeito com V-ing
I couldn't have ulcerated you couldn't have ulcerated she couldn't have ulcerated we couldn't have ulcerated you couldn't have ulcerated they couldn't have ulcerated	I couldn't have been ulcerating you couldn't have been ulcerating she couldn't have been ulcerating we couldn't have been ulcerating you couldn't have been ulcerating they couldn't have been ulcerating

Forma interrogativa

Forma simple	Forma com V-ing
could I ulcerate? could you ulcerate? could she ulcerate? could we ulcerate? could you ulcerate? could they ulcerate?	could I be ulcerating? could you be ulcerating? could she be ulcerating? could we be ulcerating? could you be ulcerating? could they be ulcerating?
Perfeito	Perfeito com V-ing
could I have ulcerated? could you have ulcerated? could she have ulcerated? could we have ulcerated? could you have ulcerated? could they have ulcerated?	could I have been ulcerating? could you have been ulcerating? could she have been ulcerating? could we have been ulcerating? could you have been ulcerating? could they have been ulcerating?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I ulcerate? couldn't you ulcerate? couldn't she ulcerate? couldn't we ulcerate? couldn't you ulcerate? couldn't they ulcerate?	couldn't I be ulcerating? couldn't you be ulcerating? couldn't she be ulcerating? couldn't we be ulcerating? couldn't you be ulcerating? couldn't they be ulcerating?
Perfeito	Perfeito com V-ing
couldn't I have ulcerated? couldn't you have ulcerated? couldn't she have ulcerated? couldn't we have ulcerated? couldn't you have ulcerated? couldn't they have ulcerated?	couldn't I have been ulcerating? couldn't you have been ulcerating? couldn't she have been ulcerating? couldn't we have been ulcerating? couldn't you have been ulcerating? couldn't they have been ulcerating?