| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] going on [prep] | 267 |
|
| 2 | [was/were] going [prep] a | 123 |
|
| 3 | going on [prep] a | 59 |
|
| 4 | [was/were] on [prep] a | 25 |
|
