| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] than is usual [prep] | 8 |
|
| 2 | [noun] than is usual [prep] | 5 |
|
| 3 | than is usual [prep] [adj] | 6 |
|
| 4 | than is usual [prep] [noun] | 5 |
|
