| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | as [verb] | 35754 |
|
| 2 | as [to-vb] | 3299 |
|
| 3 | [conj] to maintain | 128 |
|
| 4 | as maintain | 47 |
|
| 5 | [subord] to maintain | 29 |
|
| 6 | as to maintain | 25 |
|
