| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [v-ing] [prep] [det] | 148 |
|
| 2 | [vb past] [been] [v-ing] [prep] [det] | 148 |
|
| 3 | [vb past] [been] [verb] at [det] | 35 |
|
| 4 | [verb] [been] [v-ing] at [det] | 31 |
|
| 5 | [vb past] [been] [v-ing] at [adj] | 22 |
|
| 6 | [vb past] [been] [v-ing] at [det] | 8 |
|
| 7 | [vb past] [be] [v-ing] at [det] | 8 |
|
