| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] that [adj] [noun sg] | 73 |
|
| 2 | it is suggested that [adj] [noun sg] | 7 |
|
| 3 | it is assumed that [adj] [noun sg] | 6 |
|
| 4 | it is claimed that [adj] [noun sg] | 5 |
|
| 5 | it is accepted that [adj] [noun sg] | 5 |
|
| 6 | it is known that [adj] [noun sg] | 5 |
|
