| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] at the | 1743 |
|
| 2 | [vb past] [be] [v-ing] the | 406 |
|
| 3 | [vb past] [be] [v-ing] at | 180 |
|
| 4 | [vb past] [v-ing] at the | 168 |
|
| 5 | [vb past] [be] at the | 156 |
|
