| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] up to | 10177 |
|
| 2 | [v-ing] up to | 1800 |
|
| 3 | keep up to | 125 |
|
| 4 | keeping up [prep] | 99 |
|
| 5 | keeping [adv] to | 51 |
|
| 6 | keeping [adv prt] to | 21 |
|
| 7 | keeping up to | 21 |
|
