| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [vb mod] to | 32 |
|
| 2 | it [adv] [modal v] to | 32 |
|
| 3 | it [adv] used to | 24 |
|
| 4 | it [adv] used to | 24 |
|
| 5 | it [adv] ought to | 8 |
|
| 6 | it [adv] ought to | 8 |
|
| 7 | it never [modal v] to | 7 |
|
| 8 | it always [modal v] to | 5 |
|
