| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] used to | 2564 |
|
| 2 | [pers pn] used to | 1947 |
|
| 3 | it [vb mod] to | 752 |
|
| 4 | it [modal v] to | 752 |
|
| 5 | it used [prep] | 542 |
|
| 6 | it used to | 542 |
|
| 7 | it used to | 542 |
|
