| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has been [verb] that | 1401 |
|
| 2 | it has been [vb pp] that | 1400 |
|
| 3 | it [verb] been assumed that | 37 |
|
| 4 | it have been assumed that | 37 |
|
| 5 | it has been assumed [conj] | 29 |
|
| 6 | it has [been] assumed that | 27 |
|
| 7 | it has [be] assumed that | 27 |
|
| 8 | it has be assumed that | 27 |
|
| 9 | [pron] has been assumed that | 27 |
|
| 10 | it [vb -s] been assumed that | 27 |
|
| 11 | it has been assumed that | 27 |
|
| 12 | it has been assume that | 27 |
|
| 13 | [pers pn] has been assumed that | 27 |
|
| 14 | it has been assumed that | 27 |
|
| 15 | it has been assumed [that] | 27 |
|
