| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [conj] [noun] [prep] | 261 |
|
| 2 | is recommended [conj] [noun] | 15 |
|
| 3 | recommended [conj] [noun] [prep] | 8 |
|
| 4 | is recommended [conj] [prep] | 5 |
|
