| Position | Before | After |
|---|---|---|
| #501 | however | but |
| #502 | year | year's |
| #503 | on | in the |
| #504 | has | was |
| #505 | does | did |
| #506 | cause | causes |
| #507 | condition | conditions |
| #508 | Ive | I've |
| #509 | loose | lose |
| #510 | sometime | sometimes |
| #511 | Thanks | Thank you |
| #512 | respond | response |
| #513 | did | do |
| #514 | Would | I would |
| #515 | of | the |
| #516 | Not | I'm not |
| #517 | another | other |
| #518 | staffs | staff |
| #519 | was | had been |
| #520 | looking | look |
| #521 | at | from |
| #522 | stop | stopped |
| #523 | give | provide |
| #524 | is | would be |
| #525 | May be | Maybe |
| #526 | been | being |
| #527 | got | get |
| #528 | are | will be |
| #529 | purpose | purposes |
| #530 | week | week's |
| #531 | helps | help |
| #532 | provide | providing |
| #533 | you | they |
| #534 | here | there |
| #535 | want | would like |
| #536 | are | do |
| #537 | It's | It |
| #538 | in | within |
| #539 | and | the |
| #540 | compare | compared |
| #541 | report | reports |
| #542 | go | went |
| #543 | teacher | teachers |
| #544 | get | be |
| #545 | they | there |
| #546 | knows | know |
| #547 | anyway | any way |
| #548 | programme | program |
| #549 | will | to |
| #550 | It’s | It |