| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pron] [modal v] [vb infin] | 31314 |
|
| 2 | then [pron] [modal v] [vb infin] | 5369 |
|
| 3 | [subord] then [pron] [modal v] | 101 |
|
