| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] [v-ing] [prep] [det] | 477 |
|
| 2 | [verb] [been] [verb] at [det] | 153 |
|
| 3 | [verb] [been] [v-ing] at [adj] | 59 |
|
| 4 | [verb] [be] [v-ing] at [det] | 32 |
|
