| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what do they [vb infin] [prep] [det] | 8 |
|
| 2 | what do they [vb infin] [prep] [det] | 8 |
|
| 3 | what do they [vb infin] [det] [noun] | 6 |
|
| 4 | what do they [vb infin] [det] [noun sg] | 5 |
|
