| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] think [prep] | 323 |
|
| 2 | [Wh pn] [modal v] [be] [prep] | 160 |
|
| 3 | [Wh pn] [modal v] think [prep] | 13 |
|
| 4 | [Wh pn] [modal v] [be] think | 9 |
|
