| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was left [v-ing] at the | 5 |
|
| 2 | [be] left [v-ing] at the | 5 |
|
| 3 | [was/were] left [v-ing] at the | 5 |
|
| 4 | be left [v-ing] at the | 5 |
|
