| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [adv] to be | 43 |
|
| 2 | which have yet to be | 30 |
|
| 3 | which have [adv] to be | 20 |
|
| 4 | which has [adv] to be | 15 |
|
| 5 | which had [adv] to be | 8 |
|
| 6 | which have still to be | 5 |
|
