| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [modal v] be used [prep] | 839 |
|
| 2 | which [modal v] be used [prep] | 286 |
|
| 3 | [noun sg] which [modal v] be used | 240 |
|
| 4 | [noun sg] which [modal v] be [prep] | 111 |
|
