| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while it was [adv] [verb] | 21 |
|
| 2 | while it [was/were] [adv] [vb pp] | 15 |
|
| 3 | while it [was/were] still [verb] | 8 |
|
| 4 | while it [was/were] [adv] [v-ing] | 6 |
|
| 5 | while it [was/were] generally [verb] | 6 |
|
