| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it should therefore be | 20 |
|
| 2 | it should therefore [be] | 20 |
|
| 3 | it should therefore be | 20 |
|
| 4 | it should therefore [be] | 20 |
|
| 5 | it should therefore [verb] | 8 |
|
| 6 | it should therefore [vb infin] | 8 |
|
