| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [to-vb] for | 8 |
|
| 2 | they [vb mod] [to-vb] for | 8 |
|
| 3 | they used [to-vb] for | 7 |
|
| 4 | they used [to-vb] for | 7 |
|
