| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be used for [adj] | 140 |
|
| 2 | it [modal v] be used for | 56 |
|
| 3 | it be used for [adj] | 13 |
|
| 4 | it [modal v] be for [adj] | 11 |
|
