| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [modal v] [be] used for | 150 |
|
| 2 | [noun pl] that [modal v] [be] used | 113 |
|
| 3 | that [modal v] [be] used for | 35 |
|
| 4 | [noun pl] that [be] used for | 12 |
|
