| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] should i [vb infin] [adv] [prep] | 8 |
|
| 2 | why should i [vb infin] [adv] [prep] | 7 |
|
| 3 | [Wh adv] should i [vb infin] [adv] [prep] | 7 |
|
| 4 | why should i [vb infin] [adv] [prep] | 7 |
|
