| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] and maintain [art] | 54 |
|
| 2 | [to-vb] and maintain a | 28 |
|
| 3 | [to-vb] and maintain the | 26 |
|
| 4 | [to-vb] and maintain the | 26 |
|
| 5 | [to-vb] and maintain a | 25 |
|
| 6 | to create and maintain [art] | 6 |
|
| 7 | to develop and maintain [art] | 5 |
|
