| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] at [art] | 172 |
|
| 2 | [conj] have been [v-ing] [art] | 36 |
|
| 3 | [conj] have been at [art] | 15 |
|
| 4 | [conj] have been [v-ing] at | 12 |
|
