| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb base] they are on | 5 |
|
| 2 | [vb base] they are [verb] on | 7 |
|
| 3 | [vb base] they are [v-ing] on | 7 |
|
| 4 | [vb base] they are work on | 5 |
|
| 5 | [vb base] they are working on | 5 |
|
