English spelling and pronunciation are not always identical.
Did you know there are eight (EIGHT!) ways to pronounce the sound of "ough"?
Here are some examples from I Love Lucy.

| The main idea | Example |
| main verbs | SELL, GIVE, EMPLOY |
| nouns | CAR, MUSIC, MARY |
| adjectives | RED, BIG, INTERESTING |
| adverbs | QUICKLY, LOUDLY, NEVER |
| negative auxiliaries | DON'T, AREN'T, CAN'T |
| Words for correct grammar | Example |
| pronouns | he, we, they |
| prepositions | on, at, into |
| articles | a, an, the |
| conjunctions | and, but, because |
| auxiliary verbs | do, be, have, can, must |
"They've been to Mongolia, haven't they?"
"No, THEY haven't, but WE have.