| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be waiting [prep] [pron] [verb] up | 10 |
|
| 2 | [be] waiting [prep] [pron] [verb] up | 10 |
|
| 3 | [was/were] waiting [prep] [pron] [verb] up | 6 |
|
