| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while [prep] the same time [adj] | 8 |
|
| 2 | while at the same time [adj] | 8 |
|
| 3 | while [prep] the same time [adj] | 8 |
|
| 4 | while at the same time [adj] | 8 |
|
