| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [adv] [verb] for a | 9 |
|
| 2 | it [modal v] [adv] [verb] for a | 9 |
|
| 3 | it [modal v] [adv] [vb infin] for a | 9 |
|
| 4 | it [modal v] [adv] [verb] for a | 5 |
|
