| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [that] [pron] maintain a | 5 |
|
| 2 | ensure [that] [pron] maintain a | 5 |
|
| 3 | [that] [pron] maintain a [adj] | 7 |
|
| 4 | [that] [pron] maintain a [adj] | 7 |
|
