| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have to be [verb] | 1868 |
|
| 2 | [det] have to be [verb] | 232 |
|
| 3 | [det] [vb mod] have to be | 106 |
|
| 4 | [det] [vb mod] to be [verb] | 17 |
|
