| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [verb] for | 3707 |
|
| 2 | [be] used for | 2640 |
|
| 3 | be used for | 2640 |
|
| 4 | were [vb pp] for | 2637 |
|
| 5 | were used [prep] | 644 |
|
| 6 | [was/were] used for | 484 |
|
| 7 | were use for | 178 |
|
