| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [was/were] go on at [noun] | 5 |
|
| 2 | what [was/were] go on at [noun prp] | 5 |
|
| 3 | what [was/were] going on at [noun] | 5 |
|
| 4 | what was go on at [noun] | 5 |
|
