| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] have to be | 8 |
|
| 2 | [be] [vb pp] have to be | 8 |
|
| 3 | be [vb pp] have to [be] | 8 |
|
| 4 | [be] [vb pp] have to [be] | 8 |
|
