| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] for [det] | 45 |
|
| 2 | could be [verb] for [det] | 45 |
|
| 3 | could [be] [verb] for this | 11 |
|
| 4 | could [be] used for [det] | 11 |
|
| 5 | could [be] use for [det] | 11 |
|
