| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could be of [noun] | 6 |
|
| 2 | they could [be] of [noun sg] | 6 |
|
| 3 | they could be of [noun] | 6 |
|
| 4 | they could [be] of [noun] | 6 |
|
