ie/ ei words

(I before e except after c rule usually works, be careful with number 18.)

1. niece
2. brief
3. belief
4. believe
5. chief
6. grief
7. mischief
8. achieve
9. siege
10. priest
11. fierce
12. pierce

13. receive
14. ceiling
15. conceit
16. deceit
17. deceive

18. seize (exception to rule)