| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb -s] been [verb] for | 47 |
|
| 2 | who [vb -s] [been] [verb] for | 47 |
|
| 3 | who has [been] [verb] for | 39 |
|
| 4 | who [vb -s] [been] [v-ing] for | 29 |
|
| 5 | who [vb -s] [been] [vb pp] for | 18 |
|
| 6 | who 's [been] [verb] for | 8 |
|
