| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when did [pers pn] [vb infin] [adj] [noun] | 9 |
|
| 2 | when did [pron] [vb infin] [det] [noun] | 8 |
|
| 3 | when did [pron] [vb infin] [adj] [noun sg] | 6 |
|
| 4 | when did you [vb infin] [adj] [noun] | 5 |
|
| 5 | when did you [vb infin] [adj] [noun] | 5 |
|
