| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why do [adv] [pers pn] come [adv] | 58 |
|
| 2 | why do [adv] [pers pn] [verb] back | 27 |
|
| 3 | why do [adv] [pers pn] [vb infin] back | 27 |
|
| 4 | why do [adv] [pron] come back | 9 |
|
| 5 | why do [adv] [pers pn] come back | 9 |
|
| 6 | [adv] do [adv] [pers pn] come back | 9 |
|
| 7 | why do [adv] [pers pn] come back | 9 |
|
| 8 | why [verb] [adv] [pers pn] come back | 9 |
|
| 9 | [Wh adv] do [adv] [pers pn] come back | 9 |
|
