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