| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] [n mass] area should be | 5 |
|
| 2 | [num] [n mass] area should be | 5 |
|
| 3 | [num] [n mass] [noun sg] should be | 5 |
|
| 4 | [num] [n mass] [noun] should be | 5 |
|
| 5 | [num] [n mass] should be [vb pp] | 6 |
|
| 6 | [num] [n mass] should be [verb] | 6 |
|
