| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] rare for [art] | 10 |
|
| 2 | it is [adv] rare for [art] | 9 |
|
| 3 | it is rare for [art] [noun] | 19 |
|
| 4 | it is rare for [art] [noun sg] | 17 |
|
