| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] to be | 476 |
|
| 2 | which [vb past] to be | 476 |
|
| 3 | which [vb past] to be | 474 |
|
| 4 | which had to be | 177 |
|
| 5 | which seemed to be | 79 |
|
| 6 | which proved to be | 50 |
|
| 7 | which appeared to be | 37 |
|
| 8 | which needed to be | 28 |
|
| 9 | which came to be | 27 |
|
| 10 | which happened to be | 17 |
|
| 11 | which tended to be | 12 |
|
| 12 | which continued to be | 11 |
|
