| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at about the same [noun] | 162 |
|
| 2 | at about the same [noun sg] | 161 |
|
| 3 | at about the same time | 133 |
|
| 4 | at about the same time | 133 |
|
| 5 | at about the same level | 8 |
|
| 6 | at about the same level | 7 |
|
