| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] at [adj] time | 116 |
|
| 2 | [was/were] [v-ing] at [adj] time | 25 |
|
| 3 | [was/were] do at [adj] time | 9 |
|
| 4 | [be] doing at [adj] time | 9 |
|
| 5 | [was/were] doing at [adj] [noun] | 7 |
|
| 6 | [was/were] doing [prep] [adj] time | 6 |
|
| 7 | [was/were] doing [prep] [adj] time | 6 |
|
| 8 | [was/were] doing at [adj] time | 5 |
|
