| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pers pn] has been [v-ing] [prep] | 11 |
|
| 2 | which [pers pn] [vb -s] been [v-ing] [prep] | 10 |
|
| 3 | [Wh det] he [vb -s] been [v-ing] [prep] | 10 |
|
| 4 | [Wh det] [pers pn] [vb -s] been [v-ing] for | 7 |
|
