| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | reason why [art] [noun sg] | 263 |
|
| 2 | [adj] reason why [art] | 200 |
|
| 3 | [adj] reason [art] [noun sg] | 138 |
|
| 4 | [adj] reason why [noun sg] | 62 |
|
| 5 | [adj] why [art] [noun sg] | 34 |
|
