Conjugação do verbo inglês
COULD ULULATE

Verbo regular: ululate - ululated - ululated

Afirmação

Forma simple	Forma com V-ing
I could ululate you could ululate he could ululate we could ululate you could ululate they could ululate	I could be ululating you could be ululating he could be ululating we could be ululating you could be ululating they could be ululating
Perfeito	Perfeito com V-ing
I could have ululated you could have ululated he could have ululated we could have ululated you could have ululated they could have ululated	I could have been ululating you could have been ululating he could have been ululating we could have been ululating you could have been ululating they could have been ululating

Negação

Forma simple	Forma com V-ing
I couldn't ululate you couldn't ululate he couldn't ululate we couldn't ululate you couldn't ululate they couldn't ululate	I couldn't be ululating you couldn't be ululating he couldn't be ululating we couldn't be ululating you couldn't be ululating they couldn't be ululating
Perfeito	Perfeito com V-ing
I couldn't have ululated you couldn't have ululated he couldn't have ululated we couldn't have ululated you couldn't have ululated they couldn't have ululated	I couldn't have been ululating you couldn't have been ululating he couldn't have been ululating we couldn't have been ululating you couldn't have been ululating they couldn't have been ululating

Forma interrogativa

Forma simple	Forma com V-ing
could I ululate? could you ululate? could he ululate? could we ululate? could you ululate? could they ululate?	could I be ululating? could you be ululating? could he be ululating? could we be ululating? could you be ululating? could they be ululating?
Perfeito	Perfeito com V-ing
could I have ululated? could you have ululated? could he have ululated? could we have ululated? could you have ululated? could they have ululated?	could I have been ululating? could you have been ululating? could he have been ululating? could we have been ululating? could you have been ululating? could they have been ululating?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I ululate? couldn't you ululate? couldn't he ululate? couldn't we ululate? couldn't you ululate? couldn't they ululate?	couldn't I be ululating? couldn't you be ululating? couldn't he be ululating? couldn't we be ululating? couldn't you be ululating? couldn't they be ululating?
Perfeito	Perfeito com V-ing
couldn't I have ululated? couldn't you have ululated? couldn't he have ululated? couldn't we have ululated? couldn't you have ululated? couldn't they have ululated?	couldn't I have been ululating? couldn't you have been ululating? couldn't he have been ululating? couldn't we have been ululating? couldn't you have been ululating? couldn't they have been ululating?