| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] a | 29917 |
|
| 2 | [be] [prep] a | 17791 |
|
| 3 | [be] [prep] [adv] | 6759 |
|
| 4 | [prep] [adv] a | 6059 |
|
