| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [no cls] why do | 30 |
|
| 2 | [no cls] why did | 16 |
|
| 3 | erm why do | 14 |
|
| 4 | [no cls] why does | 6 |
|
| 5 | wh why do | 6 |
|
