| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [pron] [verb] | 2725 |
|
| 2 | why do [pron] [vb infin] | 2710 |
|
| 3 | [adv] do [pron] sell | 9 |
|
| 4 | [Wh adv] do [pron] sell | 7 |
|
| 5 | why do [pron] sell | 6 |
|
| 6 | why [verb] [pron] sell | 6 |
|
| 7 | why do [pron] sell | 6 |
|
