| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] | 170330 |
|
| 2 | [modal v] [be] [vb pp] | 151904 |
|
| 3 | [modal v] [be] think | 608 |
|
| 4 | [modal v] [be] thought | 444 |
|
