| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should not [verb] let him | 11 |
|
| 2 | should not have let him | 11 |
|
| 3 | should not [vb infin] let him | 11 |
|
| 4 | should not have let him | 10 |
|
| 5 | should not let him [verb] | 5 |
|
| 6 | should not let him [vb infin] | 5 |
|
