| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] a | 30301 |
|
| 2 | [verb] [be] a | 13596 |
|
| 3 | [be] [to-vb] a | 3827 |
|
| 4 | [verb] [be] [to-vb] | 3080 |
|
