| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [not/n't] [vb infin] | 4409 |
|
| 2 | [pron] may [not/n't] [vb infin] | 1046 |
|
| 3 | it may [adv] [vb infin] | 755 |
|
| 4 | it may [not/n't] [verb] | 178 |
|
