| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [was/were] at a time | 14 |
|
| 2 | [det] [was/were] at a time | 14 |
|
| 3 | this [was/were] at a time | 13 |
|
| 4 | this [was/were] at a time | 13 |
|
| 5 | it [was/were] at a time | 7 |
|
| 6 | [pron] [was/were] at a time | 7 |
|
| 7 | [pers pn] [was/were] at a time | 7 |
|
| 8 | it [was/were] at a time | 7 |
|
| 9 | [was/were] [verb] at a time | 48 |
|
| 10 | [was/were] [vb pp] at a time | 42 |
|
| 11 | [was/were] [v-ing] at a time | 6 |
|
| 12 | [was/were] [adj] at a time | 6 |
|
| 13 | [was/were] [adj] at a time | 6 |
|
| 14 | [was/were] at a time [Wh adv] | 19 |
|
| 15 | [was/were] at a time [adv] | 19 |
|
| 16 | [was/were] at a time when | 19 |
|
| 17 | [was/were] at a time when | 19 |
|
