| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] they | 952 |
|
| 2 | [was/were] [v-ing] they | 564 |
|
| 3 | [was/were] preventing [pron] | 11 |
|
| 4 | [be] preventing they | 10 |
|
| 5 | [was/were] prevent they | 5 |
|
