| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had to be | 1788 |
|
| 2 | who [verb] to be | 803 |
|
| 3 | who [vb past] to be | 367 |
|
| 4 | who have to be | 74 |
|
| 5 | [Wh pn] had to be | 42 |
|
| 6 | who had to be | 39 |
|
| 7 | who had [prep] be | 39 |
|
| 8 | who had to [be] | 39 |
|
