| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be used [prep] [art] [adj] | 1156 |
|
| 2 | could be used [prep] [art] | 139 |
|
| 3 | could be used [prep] [adj] | 79 |
|
| 4 | could be [prep] [art] [adj] | 61 |
|
