| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] main reason why the | 15 |
|
| 2 | [art] main reason why the | 15 |
|
| 3 | the main reason why the | 15 |
|
| 4 | the main reason why the | 15 |
|
| 5 | main reason why the [noun] | 11 |
|
| 6 | main reason why the [noun sg] | 9 |
|
| 7 | main reason why the [adj] | 5 |
|
