| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used [to-vb] [subord] i | 19 |
|
| 2 | [modal v] [to-vb] [subord] i | 19 |
|
| 3 | [vb mod] [to-vb] [subord] i | 19 |
|
| 4 | used [to-vb] [subord] i | 19 |
|
| 5 | [modal v] [to-vb] when i | 11 |
|
| 6 | [modal v] to do [subord] i | 5 |
|
