| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [det] | 74 |
|
| 2 | why did [det] | 60 |
|
| 3 | why do this | 51 |
|
| 4 | why does [det] | 40 |
|
| 5 | why do some | 36 |
|
| 6 | why do that | 35 |
|
| 7 | why do these | 18 |
|
| 8 | why do many | 8 |
|
| 9 | why do most | 7 |
|
| 10 | why do all | 6 |
|
| 11 | why do those | 5 |
|
