| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] as maintain | 31 |
|
| 2 | [adv] as to maintain | 18 |
|
| 3 | so as maintain | 17 |
|
| 4 | so as maintain | 17 |
|
| 5 | well as maintain | 14 |
|
| 6 | well as maintain | 14 |
|
| 7 | [adv] as maintaining | 13 |
|
