| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] | 170349 |
|
| 2 | [be] it [verb] | 1834 |
|
| 3 | [modal v] it [verb] | 1403 |
|
| 4 | [modal v] [be] it | 171 |
|
