A peeves | B peeves | C peeves | D peeves | E peeves | F peeves | G peeves | H peeves | I peeves | J peeves | K and L peeves | M peeves | N peeves | O peeves | P peeves | Q and R peeves
- Use is when something is fact: The senior editor is [not shall be] responsible for reviewing all documents for clarity and consistency.
- Use may instead to give permission: Members may borrow up to three CDs a month.
- Use must instead to express legal obligation: Tenants must pay rent by the 15th of each month.
- Use have to, must, need to or required instead to express other requirements: Each student is required to take the exam.
- Use should when recommending a course of action: We should move ahead with the project by Friday.
- Use will instead to express what someone plans to do or expects: I will be there. We will meet. You will like it. She will not be pleased.
- The suffix -able is more common than -ible, and it is used mostly with complete root words:workable, dependable, changeable, noticeable. The final e is dropped in some root words:desirable, excusable, indispensable, usable.
- Only -able follows g, i and the hard c ("k" sound): navigable, amiable, irrevocable.
- The suffix -ible is commonly used after double consonants (like 11), s, st, some d sounds and the soft c ("s" sound): infallible, divisible, credible, forcible.
- The -ance/ant and -ence/ent suffixes don't follow any firm rules, so use your memory:attendance, maintenance, relevant, resistant; existence, independence, persistent, superintendent.