| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [vb infin] | 33370 |
|
| 2 | [modal v] [vb infin] [noun sg] | 23458 |
|
| 3 | it [vb infin] [noun sg] | 166 |
|
| 4 | it [modal v] [noun sg] | 121 |
|
