| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb base] been [v-ing] for | 42 |
|
| 2 | [vb base] been [v-ing] [det] for | 36 |
|
| 3 | they [vb base] been [v-ing] [det] | 30 |
|
