| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which be at the same time | 11 |
|
| 2 | which [be] at the same time | 11 |
|
| 3 | which [be] at the same time | 11 |
|
| 4 | which [is] at the same time | 8 |
|
| 5 | which is at the same time | 8 |
|
