Question

Forma negativa e interogativa they work hard even day

Answer 1

Acho que você quis dizer "They work hard every day".

Forma negativa: They do not work hard every day.

Forma interrrogativa: Do they work hard every day?

Answer 2

I) Negative form: They don't work hard every day;

II) Interrogative form: Do they work hard every day?