| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] a | 43284 |
|
| 2 | [be] [adv] a | 29917 |
|
| 3 | [be] often [art] | 1039 |
|
| 4 | [be] often a | 459 |
|
