| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] unusual for | 58 |
|
| 2 | [coord] it is [adv] unusual | 21 |
|
| 3 | [coord] it is [adv] for | 19 |
|
| 4 | [coord] it is unusual for | 8 |
|
