| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | then [Wh adv] do [adv] [pron] [vb infin] | 40 |
|
| 2 | then [adv] do [adv] [pron] [vb infin] | 40 |
|
| 3 | then why do [adv] [pron] [vb infin] | 40 |
|
| 4 | then why do [adv] [pron] [vb infin] | 40 |
|
