| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] could only [be] used | 9 |
|
| 2 | [pron] could only [be] used | 5 |
|
| 3 | [noun sg] could only [be] used | 5 |
|
| 4 | could only [be] used [prep] | 10 |
|
| 5 | could only [be] used [prep] | 10 |
|
