| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] a | 29810 |
|
| 2 | be [v-ing] a | 15939 |
|
| 3 | be wait a | 22 |
|
| 4 | be waiting [art] | 20 |
|
| 5 | [be] waiting a | 18 |
|
