| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] only be [noun prp] | 18 |
|
| 2 | [modal v] only be [noun prp] | 18 |
|
| 3 | could only be [noun prp] | 10 |
|
| 4 | could only be [noun prp] | 10 |
|
| 5 | can only be [noun prp] | 6 |
|
| 6 | can only be [noun prp] | 6 |
|
