| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] used to | 1947 |
|
| 2 | it used to | 542 |
|
| 3 | i used to | 386 |
|
| 4 | they used to | 379 |
|
| 5 | he used to | 222 |
|
| 6 | we used to | 212 |
|
| 7 | she used to | 110 |
|
| 8 | you used to | 89 |
|
