| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when do [pron] first [vb infin] | 27 |
|
| 2 | when did [pron] first [vb infin] | 27 |
|
| 3 | when do [pers pn] first [vb infin] | 27 |
|
| 4 | when do you first [vb infin] | 25 |
|
| 5 | when do you first [vb infin] | 25 |
|
| 6 | when do [pron] first meet | 6 |
|
