| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [v-ing] | 4747 |
|
| 2 | been [v-ing] for | 1734 |
|
| 3 | [vb -s] been for | 163 |
|
| 4 | [vb -s] [v-ing] for | 97 |
|
