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