| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [vb pp] a | 2365 |
|
| 2 | should have [vb pp] [art] | 563 |
|
| 3 | should have [vb pp] [art] | 563 |
|
| 4 | should have [vb pp] a | 213 |
|
| 5 | should have [verb] a | 200 |
|
| 6 | should [vb infin] [vb pp] a | 197 |
|
| 7 | should [verb] [vb pp] a | 197 |
|
| 8 | should have [vb pp] a | 195 |
|
