| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] at the time | 384 |
|
| 2 | be [v-ing] at the time | 85 |
|
| 3 | be working at the [noun] | 47 |
|
| 4 | be working [prep] the time | 11 |
|
| 5 | be working at [art] time | 9 |
|
| 6 | be work at the time | 9 |
|
| 7 | [be] working at the time | 9 |
|
