| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [noun pl] ' | 2962 |
|
| 2 | challenge [prep] [noun] ' | 10 |
|
| 3 | challenge [prep] [noun pl] [unc] | 9 |
|
| 4 | challenge [prep] [noun pl] ['s] | 9 |
|
| 5 | challenge [prep] [noun pl] ' | 8 |
|
| 6 | challenge [prep] [noun pl] ' | 8 |
|
