| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [adv] [v-ing] [noun] | 573 |
|
| 2 | was [adv] at [noun] | 302 |
|
| 3 | [adv] [v-ing] at [noun] | 295 |
|
| 4 | was [v-ing] at [noun] | 276 |
|
| 5 | was [adv] [v-ing] at | 215 |
|
