| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [v-ing] at | 2033 |
|
| 2 | [noun pl] [v-ing] at | 1183 |
|
| 3 | [noun pl] was [v-ing] | 702 |
|
| 4 | [noun pl] was at | 82 |
|
