| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could only be [vb pp] [subord] [adj] | 12 |
|
| 2 | could only [be] [vb pp] [subord] [adj] | 12 |
|
| 3 | could only [be] [vb pp] as [adj] | 10 |
|
| 4 | could only [be] described [subord] [adj] | 6 |
|
