| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to keep [adv prt] to | 23 |
|
| 2 | to keep up to | 22 |
|
| 3 | to keep up to | 22 |
|
| 4 | to keep [adv] to | 12 |
|
| 5 | to keep close to | 9 |
|
| 6 | to keep close to | 9 |
|
