| Vocabulary Words | Meanings |
|---|---|
| buttocks | the two rounded parts we sit on, at the back of our body below the waist |
| button | a round fastening on clothes; any small knob |
| buttonhole | a narrow hole for a button to fit |
| buy | to give money in exchange for something |
| buzz | the humming sound a bee makes |
Modal auxiliaries Vs Primary auxiliaries
Primary auxiliaries are be, do, have. They are used to form tenses and to frame short answers.
Modal auxiliaries are will, would, may, might, shall, should, can, could, must, dare, need, used, ought. They are used to express moods.