| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [verb] at the time | 131 |
|
| 2 | was [v-ing] at the time | 43 |
|
| 3 | was working at the [noun] | 21 |
|
| 4 | was working at the [noun sg] | 16 |
|
| 5 | be working at the time | 9 |
|
| 6 | [be] working at the time | 9 |
|
| 7 | [was/were] working at the time | 8 |
|
| 8 | was working [prep] the time | 7 |
|
| 9 | was work at the time | 6 |
|
| 10 | was working at [art] time | 6 |
|
| 11 | was working at the time | 6 |
|
