| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be improve [adj] [art] time | 12 |
|
| 2 | [be] improve [adj] [art] time | 12 |
|
| 3 | is improve [adj] [art] time | 5 |
|
| 4 | [is] improve [adj] [art] time | 5 |
|
