| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | remain [prep] the same level | 5 |
|
| 2 | remain at [art] same level | 5 |
|
| 3 | remain [prep] [art] same level | 5 |
|
| 4 | remain [prep] the same level | 5 |
|
| 5 | remain [prep] [art] same level | 5 |
|
