| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [verb] at [art] time | 163 |
|
| 2 | was [v-ing] at [art] time | 47 |
|
| 3 | was working at [art] [noun] | 28 |
|
| 4 | was working at [art] [noun sg] | 23 |
|
| 5 | be working at [art] time | 9 |
|
| 6 | [be] working at [art] time | 9 |
|
| 7 | was working [prep] [art] time | 8 |
|
| 8 | was working [prep] [art] time | 8 |
|
| 9 | [was/were] working at [art] time | 8 |
|
| 10 | was working at [art] time | 6 |
|
| 11 | was working at [art] time | 6 |
|
| 12 | was work at [art] time | 6 |
|
