| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] kept for a long time | 5 |
|
| 2 | be kept for [art] long time | 5 |
|
| 3 | [be] kept for [art] long time | 5 |
|
| 4 | [be] kept for [art] long time | 5 |
|
| 5 | [be] kept for a long time | 5 |
|
| 6 | [be] kept for [art] long time | 5 |
|
