| No | Pattern | Freq | Relations |
|---|---|---|---|
| 31 | at about the [noun sg] | 68 |
|
| 32 | at about the time | 39 |
|
| 33 | at about the time | 39 |
|
| 34 | at about the age | 15 |
|
| 35 | at about the age | 15 |
|
| 36 | at about the [adj] | 9 |
|
| 37 | at about the [num ord] | 5 |
|
