| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be of [adj] [noun sg] | 630 |
|
| 2 | could be [prep] [adj] [noun sg] | 98 |
|
| 3 | could be of [adj] [noun] | 57 |
|
| 4 | could [be] of [adj] [noun sg] | 55 |
|
