| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at about [adj] | 717 |
|
| 2 | at about [num] | 684 |
|
| 3 | at [adv] six | 274 |
|
| 4 | at [adv] six | 274 |
|
| 5 | [prep] about six | 155 |
|
| 6 | at about six | 17 |
|
| 7 | at about six | 17 |
|
