| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were used [prep] [det] | 54 |
|
| 2 | were used [prep] [det] | 54 |
|
| 3 | were used in [det] | 27 |
|
| 4 | were used in [det] | 27 |
|
| 5 | were used for [det] | 19 |
|
| 6 | were used for [det] | 19 |
|
| 7 | were used [to-vb] [det] | 7 |
|
| 8 | were used [verb] [det] | 7 |
|
