| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should have [verb] | 4130 |
|
| 2 | should have [vb pp] | 3963 |
|
| 3 | [modal v] have noticed | 233 |
|
| 4 | should [verb] noticed | 15 |
|
| 5 | should have noticed | 15 |
|
| 6 | should have notice | 15 |
|
| 7 | should [vb infin] noticed | 15 |
|
