| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] | 182389 |
|
| 2 | is [adj] | 135568 |
|
| 3 | [be] economic | 147 |
|
| 4 | be economic | 147 |
|
| 5 | [is] economic | 52 |
|
| 6 | is economic | 41 |
|
