| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [not/n't] used [prep] [det] | 9 |
|
| 2 | was not used [prep] [adj] | 7 |
|
| 3 | was [not/n't] used to [adj] | 6 |
|
| 4 | was n't used [prep] [adj] | 5 |
|
