| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] have to be | 306 |
|
| 2 | [vb mod] [adv] have to be | 242 |
|
| 3 | it [adv] have to be | 76 |
|
| 4 | it [vb mod] [adv] have to | 18 |
|
| 5 | it [vb mod] [adv] to be | 7 |
|
