| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [v-ing] [adv] | 601 |
|
| 2 | who [vb base] been [v-ing] | 213 |
|
| 3 | who [vb base] been [adv] | 117 |
|
| 4 | who [vb base] [v-ing] [adv] | 5 |
|
