| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] reason why the [adj] | 16 |
|
| 2 | [num] reason why the [adj] | 16 |
|
| 3 | one reason [adv] the [adj] | 16 |
|
| 4 | [num] reason [Wh adv] the [adj] | 16 |
|
| 5 | [num] reason [adv] the [adj] | 14 |
|
