| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] up to | 10177 |
|
| 2 | keep up [prep] | 632 |
|
| 3 | keep [adv] to | 218 |
|
| 4 | keep [adv prt] to | 141 |
|
| 5 | keep up to | 125 |
|
