| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [adv] for | 362 |
|
| 2 | [Wh det] have been [v-ing] [adv] | 142 |
|
| 3 | [Wh det] have been [v-ing] for | 37 |
|
| 4 | [Wh det] have been [adv] for | 16 |
|
