| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb -s] [adv] | 52657 |
|
| 2 | [pron] [adv] maintain | 93 |
|
| 3 | [pron] [vb -s] maintain | 48 |
|
| 4 | [vb -s] [adv] maintain | 42 |
|
