| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] why they do not [verb] | 17 |
|
| 2 | [vb infin] why they do not [verb] | 11 |
|
| 3 | [be] why they do not [verb] | 10 |
|
| 4 | be why they do not [verb] | 10 |
|
| 5 | [is] why they do not [verb] | 10 |
|
| 6 | 's why they do not [verb] | 9 |
|
| 7 | know why they do not [verb] | 6 |
|
| 8 | know why they do not [verb] | 6 |
|
| 9 | [to-vb] why they do not [verb] | 5 |
|
| 10 | why they do not [adv] [verb] | 5 |
|
| 11 | why they do not [adv] [verb] | 5 |
|
| 12 | why they do not [verb] [adj] | 10 |
|
| 13 | why they do not [verb] [pron] | 7 |
|
| 14 | why they do not [verb] [det] | 7 |
|
| 15 | why they do not [verb] [noun] | 6 |
|
| 16 | why they do not [verb] [art] | 6 |
|
| 17 | why they do not [verb] [pers pn] | 6 |
|
| 18 | why they do not [verb] [art] | 6 |
|
| 19 | why they do not [verb] [adv] | 5 |
|
