| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [verb] [noun] | 850 |
|
| 2 | it [is] [vb pp] [noun] | 380 |
|
| 3 | it [is] understand [noun] | 26 |
|
| 4 | it [be] understood [noun] | 26 |
|
| 5 | [pron] [is] understood [noun] | 26 |
|
