| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] used [prep] a | 70 |
|
| 2 | could [be] used [prep] a | 70 |
|
| 3 | could be used [prep] a | 70 |
|
| 4 | could be used [prep] a | 70 |
|
| 5 | could [be] used as a | 49 |
|
| 6 | could [be] used as a | 49 |
|
| 7 | could [be] used in a | 9 |
|
| 8 | could [be] used in a | 9 |
|
| 9 | could [be] used for a | 6 |
|
| 10 | could [be] used for a | 6 |
|
