| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pers pn] have been [v-ing] | 588 |
|
| 2 | [pers pn] have been [v-ing] since | 46 |
|
| 3 | [Wh det] have been [v-ing] since | 9 |
|
