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