| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] [noun] [prep] | 547 |
|
| 2 | at [adv] [n mass] [prep] | 365 |
|
| 3 | [prep] [adv] 50% [prep] | 47 |
|
| 4 | at [adv] 50% [prep] | 13 |
|
| 5 | at [adv] 50% [prep] | 13 |
|
