| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [noun] [noun] | 1054 |
|
| 2 | is [vb pp] [noun] [noun] | 188 |
|
| 3 | [be] understood [noun] [noun] | 9 |
|
| 4 | [is] understood [noun] [noun] | 9 |
|
| 5 | be understood [noun] [noun] | 9 |
|
| 6 | is understand [noun] [noun] | 7 |
|
