| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be a | 14188 |
|
| 2 | na be [art] | 341 |
|
| 3 | [to] be a | 310 |
|
| 4 | na be a | 262 |
|
| 5 | na [be] a | 262 |
|
| 6 | na [be] a | 262 |
|
| 7 | na be a | 262 |
|
