| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | why [vb past] i [verb] [adv prt] | 5 |
|
| 2 | why [vb past] i [vb infin] [adv prt] | 5 |
|
| 3 | why did i [verb] [adv prt] | 5 |
|
| 4 | why [vb past] i [verb] [adv prt] | 5 |
|
