| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it was thought that [noun] | 20 |
|
| 2 | it was thought that [det] | 16 |
|
| 3 | was thought that [det] [noun] | 8 |
|
| 4 | it was that [det] [noun] | 5 |
|
