| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [v-ing] for | 584 |
|
| 2 | it [vb past] been [v-ing] | 128 |
|
| 3 | it [vb past] been for | 40 |
|
| 4 | it [vb past] [v-ing] for | 6 |
|
