| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] only [vb infin] | 6252 |
|
| 2 | [modal v] therefore [vb infin] | 1196 |
|
| 3 | [modal v] therefore only | 20 |
|
| 4 | therefore only [vb infin] | 13 |
|
