| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] be [verb] [adj -er] | 8 |
|
| 2 | [modal v] have be [verb] [adj -er] | 8 |
|
| 3 | [modal v] [vb infin] been [verb] [adj -er] | 8 |
|
| 4 | [modal v] [vb infin] be [vb pp] [adj -er] | 6 |
|
