| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [vb infin] [adv prt] [prep] [art] | 756 |
|
| 2 | why not [vb infin] [prep] [art] | 36 |
|
| 3 | why not [vb infin] [adv prt] [prep] | 19 |
|
| 4 | why not [vb infin] [adv prt] [art] | 9 |
|
