| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at the [noun sg] | 7360 |
|
| 2 | [vb pp] improve the [noun sg] | 114 |
|
| 3 | at improve the [noun sg] | 23 |
|
| 4 | [vb pp] at improve the | 18 |
|
