| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [adv] to [be] | 20 |
|
| 2 | which have [adv] to be | 20 |
|
| 3 | which have [adv] to be | 20 |
|
| 4 | which have yet to [be] | 16 |
|
