| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [was/were] [verb] [prep] [art] | 2431 |
|
| 2 | [Wh det] [be] happening [prep] [art] | 289 |
|
| 3 | [Wh det] [was/were] [v-ing] [prep] [art] | 184 |
|
| 4 | [pron] [was/were] happening [prep] [art] | 86 |
|
| 5 | [Wh det] [was/were] happen [prep] [art] | 78 |
|
| 6 | [Wh det] [was/were] happening [prep] [art] | 73 |
|
| 7 | [Wh det] [was/were] happening [prep] [art] | 73 |
|
