| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [adv] [v-ing] [prep] | 2183 |
|
| 2 | was [v-ing] [prep] work | 36 |
|
| 3 | [adv] [v-ing] [prep] work | 35 |
|
| 4 | was [adv] [prep] work | 26 |
|
