| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [v-ing] for | 584 |
|
| 2 | [vb past] been [v-ing] [to-vb] | 339 |
|
| 3 | been [v-ing] [to-vb] for | 35 |
|
| 4 | [vb past] been [to-vb] for | 5 |
|
