| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | reason why [adj] [noun] | 193 |
|
| 2 | reason why [adj] [noun sg] | 95 |
|
| 3 | why [adj] [noun] [noun sg] | 32 |
|
| 4 | reason why [noun] [noun sg] | 14 |
|
