| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] only be one [noun] | 44 |
|
| 2 | could only be [adj] [noun] | 23 |
|
| 3 | could [adv] be one [noun] | 16 |
|
| 4 | could only [be] one [noun] | 15 |
|
