| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] was [v-ing] [prep] [art] | 3562 |
|
| 2 | [pron] [be] [v-ing] at [art] | 1003 |
|
| 3 | [pron] be [v-ing] at [art] | 1003 |
|
| 4 | [pron] was [verb] at [art] | 872 |
|
| 5 | [pron] [was/were] [v-ing] at [art] | 540 |
|
