| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be used [prep] three | 7 |
|
| 2 | [modal v] be used [prep] three | 7 |
|
| 3 | can be used [prep] three | 5 |
|
| 4 | can be used [prep] three | 5 |
|
| 5 | be used [prep] three [adj] | 7 |
|
| 6 | be used [prep] three [adj] | 7 |
|
