| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when did [pers pn] [verb] | 380 |
|
| 2 | when did [pers pn] [vb infin] | 376 |
|
| 3 | [adv] did [pers pn] last | 74 |
|
| 4 | when did [pers pn] last | 70 |
|
| 5 | [Wh adv] did [pers pn] last | 68 |
|
| 6 | when did [pers pn] last | 68 |
|
| 7 | when do [pers pn] last | 68 |
|
| 8 | when [vb past] [pers pn] last | 68 |
|
| 9 | when did [pron] last | 68 |
|
| 10 | when [verb] [pers pn] last | 68 |
|
