| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do they [vb infin] | 155 |
|
| 2 | why do they have | 18 |
|
| 3 | why do they do | 17 |
|
| 4 | why do they want | 12 |
|
| 5 | why do they need | 8 |
|
| 6 | why do they think | 7 |
|
| 7 | why do they call | 6 |
|
| 8 | why do they keep | 5 |
|
| 9 | why do they put | 5 |
|
| 10 | why do they make | 5 |
|
