| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [v-ing] [pron] | 7573 |
|
| 2 | was [v-ing] at | 2033 |
|
| 3 | [v-ing] [pron] at | 913 |
|
| 4 | was [pron] at | 101 |
|
