| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb mod] to | 504 |
|
| 2 | they used to | 379 |
|
| 3 | they ought to | 108 |
|
| 4 | they would to | 7 |
|
| 5 | they can to | 5 |
|
