| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be therefore impossible | 11 |
|
| 2 | [be] therefore impossible | 11 |
|
| 3 | is therefore impossible | 9 |
|
| 4 | [is] therefore impossible | 9 |
|
| 5 | therefore impossible [to-vb] | 7 |
|
| 6 | therefore impossible [verb] | 7 |
|
