| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [modal v] [be] [prep] [art] | 19 |
|
| 2 | [subord] [modal v] [be] [prep] [art] | 19 |
|
| 3 | [conj] [modal v] [be] to [art] | 8 |
|
| 4 | [subord] [modal v] [be] to [art] | 6 |
|
