| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how do they [vb infin] [prep] [det] | 9 |
|
| 2 | how do they [vb infin] [prep] [det] | 9 |
|
| 3 | how do they [vb infin] [det] [noun] | 5 |
|
