| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | used are [vb pp] [prep] | 20 |
|
| 2 | used are [verb] [prep] | 20 |
|
| 3 | used are [verb] in | 9 |
|
| 4 | used are [verb] in | 9 |
|
| 5 | used are [verb] on | 5 |
|
| 6 | used are [verb] on | 5 |
|
