| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [v-ing] | 6932 |
|
| 2 | [vb past] [v-ing] through | 131 |
|
| 3 | [vb past] been through | 98 |
|
| 4 | been [v-ing] through | 92 |
|
