| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [adv] [conj] [verb] | 2056 |
|
| 2 | [be] [vb pp] [adv] [conj] [to-vb] | 203 |
|
| 3 | [be] [vb pp] [adv] [conj] maintain | 11 |
|
| 4 | [be] [verb] [adv] [conj] to maintain | 5 |
|
