| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at which [adj] [noun] | 150 |
|
| 2 | at which [adj] [noun sg] | 75 |
|
| 3 | at which [adj] [noun pl] | 70 |
|
| 4 | at which new [noun] | 10 |
|
| 5 | at which marginal [noun] | 5 |
|
