| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while i [be] [v-ing] in | 11 |
|
| 2 | while i be [v-ing] in | 11 |
|
| 3 | while i was [v-ing] in | 10 |
|
| 4 | while i [was/were] [v-ing] in | 10 |
|
