| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] be [num] [noun] | 19 |
|
| 2 | could [adv] be [num] [noun sg] | 18 |
|
| 3 | could [adv] be one [noun] | 16 |
|
| 4 | could only be [num] [noun] | 15 |
|
