| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should have be think [prep] | 5 |
|
| 2 | should have been think [prep] | 5 |
|
| 3 | should have [be] think [prep] | 5 |
|
| 4 | should have [been] think [prep] | 5 |
|
