| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's [vb pp] to have | 60 |
|
| 2 | has [vb pp] to have | 55 |
|
| 3 | [vb -s] got to have | 52 |
|
| 4 | [vb -s] had to have | 13 |
|
