| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [was/were] [verb] to be | 70 |
|
| 2 | [prep] what [was/were] [vb pp] to be | 64 |
|
| 3 | [prep] what [be] thought to be | 21 |
|
| 4 | [prep] [pron] [was/were] thought to be | 12 |
|
| 5 | [prep] what [was/were] thought [prep] be | 10 |
|
| 6 | [prep] what [was/were] thought to [be] | 10 |
|
| 7 | [prep] what [was/were] thought to be | 10 |
|
| 8 | [prep] what [was/were] think to be | 10 |
|
| 9 | [prep] what [was/were] thought [prep] be | 10 |
|
| 10 | [prep] what [was/were] thought to be | 10 |
|
