| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used [to-vb] [adv] when | 5 |
|
| 2 | [pers pn] used [to-vb] [adv] when | 5 |
|
| 3 | used [to-vb] [adv] when [pron] | 6 |
|
| 4 | used [to-vb] [adv] when [pers pn] | 6 |
|
