| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] been [v-ing] for [pers pn] | 5 |
|
| 2 | who have be [v-ing] for [pers pn] | 5 |
|
| 3 | who [verb] be [v-ing] for [pers pn] | 5 |
|
