1. yet or still
Temperatures will dip, but the heat wave isn't over ___.

2. yet or still
Have you bought your Halloween costume ___?

3. yet or still
Temperatures will dip, but the heat wave isn't over yet.
Have you bought your Halloween costume yet?
Yet means expecting: typical position at the end with a negative or question.

4. yet or still
After all of these years he _____ lives in Spain.

5. yet or still
They are ____ married despite the problems they've had.

6. yet or still
He has ____ failed to pass his driving exam.

7. yet or still
After all of these years he still lives in Spain.
They are still married despite the problems they've had.
He has still failed to pass his driving exam.
Still means the situation continues: typical position before the main verb, after the verb "to be" or after "have" the auxiliary verb.

8. yet or still
The best year is ____ to come for Ronaldo.

9. yet or still
Winter has ____ to arrive.

10. yet or still
The best year is yet to come for Ronaldo.
Winter has yet to arrive.
Yet means expecting: Formal position between the auxiliary verb and the infinitive with to.

11. yet or still
____ to arrive was the president.

12. yet or still
Yet to arrive was the president.
Yet means expecting: Very formal position at the beginning + the infinitive with to.

13. yet or still
Many people ____ don't have electricity one month after the hurricane.

14. yet or still Still means the situation continues: before the negative.
Many people still don't have electricity one month after the hurricane.
Still means the situation continues: before the negative.

15. yet or still
Do you ____ live in Madrid?

16. yet or still
Do you still live in Madrid?
Still means the situation continues: in a question before the main verb.

17. yet or still
They ____ haven't confirmed our reservation.

18. yet or still
He ____ doesn't know my name.

19. yet or still Still means the situation continues: before a negative.
They still haven't confirmed our reservation.
He still doesn't know my name.
Still means the situation continues: before a negative.

20. yet or still
You don’t ____ wear those old smelly shoes, do you?

21. yet or still
He doesn’t ____ believe that climate change is a hoax, does he?

22. yet or still
You don’t still wear those old smelly shoes, do you?
He doesn’t still believe that climate change is a hoax, does he?
Still adds emphasis to a negative question – NOTE! In this case “still” comes after the negative.

23. yet or still
We do not ____ know his answer.

24. yet or still
The solution isn’t ____ known.

25. yet or still
We do not yet know his answer.
The solution isn’t yet known.
Yet means expecting: A bit more formal position with a negative between the negative and the infinitive.