| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be [vb pp] [prep] | 38845 |
|
| 2 | have to be [vb pp] | 1896 |
|
| 3 | have to be [prep] | 111 |
|
| 4 | have to [vb pp] [prep] | 6 |
|
