| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [vb mod] [vb infin] | 252 |
|
| 2 | then [vb mod] [vb infin] | 196 |
|
| 3 | [prep] then [vb infin] | 48 |
|
| 4 | [prep] then [vb mod] | 21 |
|
