| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] for [noun pl] | 170 |
|
| 2 | [Wh pn] have been [v-ing] for | 84 |
|
| 3 | [Wh pn] have been [v-ing] [noun pl] | 50 |
|
