| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be happening at the time | 7 |
|
| 2 | [be] happening at the time | 7 |
|
| 3 | [was/were] happening at the time | 5 |
|
| 4 | happening at the [adj] time | 6 |
|
| 5 | happening at the same time | 5 |
|
| 6 | happening at the [det] time | 5 |
|
| 7 | happening at the same time | 5 |
|
