Отрицательное:

Our cat didn't sleep in the armchair yesterday.

Вопросы:

When did our cat sleep in the armchair? (Special)

Where did our cat sleep yesterday? (Special)

Why did our cat sleep in the armchair yesterday? (Special)

Did our cat sleep yesterday in the armchair or on the couch? (Alternative)

Our cat slept in the armchair yesterday, didn't she? (Tag)

Who slept in the armchair yesterday? (Subject)

Did our cat sleep in the armchair yesterday? (General)