| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [was/were] used for [noun] | 97 |
|
| 2 | [noun] used for this [noun] | 18 |
|
| 3 | [noun] [was/were] used for this | 12 |
|
| 4 | [was/were] used for this [noun] | 12 |
|
