| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [prep] [art] | 20913 |
|
| 2 | used [prep] [art] | 7184 |
|
| 3 | [was/were] used [prep] | 1783 |
|
| 4 | [was/were] used [art] | 11 |
|
