| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [adv] have [verb] | 1015 |
|
| 2 | should [adv] have [vb pp] | 901 |
|
| 3 | [modal v] [adv] have thought | 220 |
|
| 4 | should [adv] have think | 21 |
|
| 5 | should [adv] [verb] thought | 15 |
|
