| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [vb pp] [prep] a [adj -er] | 187 |
|
| 2 | [modal v] [be] [vb pp] at a [adj] | 186 |
|
| 3 | [modal v] [be] [vb pp] at [art] [adj -er] | 56 |
|
| 4 | [modal v] [be] [verb] at a [adj -er] | 53 |
|
