| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be used [prep] [num] [adj] | 8 |
|
| 2 | [modal v] be used [prep] [num] [adj] | 8 |
|
| 3 | can be used [prep] [num] [adj] | 6 |
|
| 4 | [modal v] be used for [num] [adj] | 6 |
|
| 5 | can be used [prep] [num] [adj] | 6 |
|
| 6 | [modal v] be used [prep] three [adj] | 6 |
|
