| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so we have [to-vb] | 86 |
|
| 2 | so we had [to-vb] | 52 |
|
| 3 | so we have [to-vb] | 34 |
|
| 4 | so we have to go | 7 |
|
