Present:
Question: Do you ever eat sushi?
Answer: Yes, I sometimes eat sushi.

Question: Does he understand Spanish?
Answer: No, he doesn't understand Spanish.

Past:
Question: Did you watch the new movie yesterday?
Answer: No, I didn't watch the new movie yesterday.

Question: Did they visit Paris last month?
Answer: Yes, they visited Paris last month.

Future:
Question: Will she travel to Europe next year?
Answer: Yes, she will travel to Europe next year.

Question: Will they buy a new car in the future?
Answer: No, they won't buy a new car in the future.