Conjugação do verbo inglês
COULD FRUSTRATE

Verbo regular: frustrate - frustrated - frustrated

Afirmação

Forma simple	Forma com V-ing
I could frustrate you could frustrate she could frustrate we could frustrate you could frustrate they could frustrate	I could be frustrating you could be frustrating she could be frustrating we could be frustrating you could be frustrating they could be frustrating
Perfeito	Perfeito com V-ing
I could have frustrated you could have frustrated she could have frustrated we could have frustrated you could have frustrated they could have frustrated	I could have been frustrating you could have been frustrating she could have been frustrating we could have been frustrating you could have been frustrating they could have been frustrating

Negação

Forma simple	Forma com V-ing
I couldn't frustrate you couldn't frustrate she couldn't frustrate we couldn't frustrate you couldn't frustrate they couldn't frustrate	I couldn't be frustrating you couldn't be frustrating she couldn't be frustrating we couldn't be frustrating you couldn't be frustrating they couldn't be frustrating
Perfeito	Perfeito com V-ing
I couldn't have frustrated you couldn't have frustrated she couldn't have frustrated we couldn't have frustrated you couldn't have frustrated they couldn't have frustrated	I couldn't have been frustrating you couldn't have been frustrating she couldn't have been frustrating we couldn't have been frustrating you couldn't have been frustrating they couldn't have been frustrating

Forma interrogativa

Forma simple	Forma com V-ing
could I frustrate? could you frustrate? could she frustrate? could we frustrate? could you frustrate? could they frustrate?	could I be frustrating? could you be frustrating? could she be frustrating? could we be frustrating? could you be frustrating? could they be frustrating?
Perfeito	Perfeito com V-ing
could I have frustrated? could you have frustrated? could she have frustrated? could we have frustrated? could you have frustrated? could they have frustrated?	could I have been frustrating? could you have been frustrating? could she have been frustrating? could we have been frustrating? could you have been frustrating? could they have been frustrating?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I frustrate? couldn't you frustrate? couldn't she frustrate? couldn't we frustrate? couldn't you frustrate? couldn't they frustrate?	couldn't I be frustrating? couldn't you be frustrating? couldn't she be frustrating? couldn't we be frustrating? couldn't you be frustrating? couldn't they be frustrating?
Perfeito	Perfeito com V-ing
couldn't I have frustrated? couldn't you have frustrated? couldn't she have frustrated? couldn't we have frustrated? couldn't you have frustrated? couldn't they have frustrated?	couldn't I have been frustrating? couldn't you have been frustrating? couldn't she have been frustrating? couldn't we have been frustrating? couldn't you have been frustrating? couldn't they have been frustrating?