| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [be] understand that | 18 |
|
| 2 | it [modal v] [be] understood that | 18 |
|
| 3 | it [modal v] [be] understand that | 18 |
|
| 4 | it [modal v] be understand that | 18 |
|
| 5 | it [modal v] be understand that | 18 |
|
| 6 | it [modal v] [be] understand that | 18 |
|
| 7 | it must [be] understand that | 8 |
|
| 8 | it must [be] understand that | 8 |
|
| 9 | it should [be] understand that | 6 |
|
| 10 | it should [be] understand that | 6 |
|
