| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [conj] by the | 260 |
|
| 2 | [verb] [conj] maintain the | 82 |
|
| 3 | [verb] [conj] maintain by | 24 |
|
| 4 | [conj] maintain by the | 16 |
|
