| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] they [vb base] been [v-ing] [art] | 5 |
|
| 2 | [adv] they [vb base] be [v-ing] [art] | 5 |
|
| 3 | [adv] they [vb base] [been] [v-ing] [art] | 5 |
|
