| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while i was [adv] at | 7 |
|
| 2 | while i [was/were] [adv] at | 7 |
|
| 3 | while i be [adv] at | 7 |
|
| 4 | while i [be] still at | 5 |
|
