| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] on a | 4722 |
|
| 2 | [be] [v-ing] on a | 808 |
|
| 3 | [be] waiting [prep] a | 122 |
|
| 4 | [be] waiting [prep] a | 122 |
|
| 5 | [be] waiting on [art] | 43 |
|
| 6 | [be] waiting on a | 5 |
|
| 7 | [be] wait on a | 5 |
|
