| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] at the | 2750 |
|
| 2 | [was/were] [v-ing] at the | 816 |
|
| 3 | [was/were] happening [prep] the | 97 |
|
| 4 | [was/were] happening [prep] the | 97 |
|
| 5 | [be] happening at the | 48 |
|
| 6 | [was/were] happening at [art] | 17 |
|
| 7 | [was/were] happen at the | 14 |
|
| 8 | [was/were] happening at the | 14 |
|
