Conjugação do verbo inglês
COULD ULCERATE

Verbo regular: ulcerate - ulcerated - ulcerated

Afirmação

Forma simple	Forma com V-ing
I could ulcerate you could ulcerate he could ulcerate we could ulcerate you could ulcerate they could ulcerate	I could be ulcerating you could be ulcerating he 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 he 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 he 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 he 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 he 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 he 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 he 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 he ulcerate? could we ulcerate? could you ulcerate? could they ulcerate?	could I be ulcerating? could you be ulcerating? could he 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 he 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 he 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 he 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 he 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 he 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 he have been ulcerating? couldn't we have been ulcerating? couldn't you have been ulcerating? couldn't they have been ulcerating?