| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at some [prep] [art] | 29 |
|
| 2 | [been] [v-ing] some [prep] [art] | 13 |
|
| 3 | [been] [v-ing] at [prep] [art] | 7 |
|
| 4 | [been] [v-ing] at some [prep] | 7 |
|
