| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [v-ing] [adv] at | 7 |
|
| 2 | [pron] have been [v-ing] [adv] at | 5 |
|
| 3 | have been [v-ing] [adv] at [art] | 5 |
|
| 4 | have been [v-ing] [adv] at [art] | 5 |
|
