| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [be] [verb] [prep] | 9907 |
|
| 2 | should [be] [v-ing] [prep] | 341 |
|
| 3 | [vb mod] [be] thinking [prep] | 86 |
|
| 4 | [modal v] [be] thinking [prep] | 86 |
|
| 5 | should [be] think [prep] | 38 |
|
| 6 | should [be] thinking [prep] | 21 |
|
