| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] to [be] | 7283 |
|
| 2 | [vb mod] [vb infin] to [be] | 7263 |
|
| 3 | [vb mod] have to [be] | 2899 |
|
| 4 | [vb mod] have [prep] [be] | 2897 |
|
| 5 | [modal v] have to [be] | 2893 |
|
