| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] keep [pron] up to [noun sg] | 6 |
|
| 2 | [vb mod] keep [pron] up [prep] [noun sg] | 6 |
|
| 3 | [modal v] keep [pron] up [prep] date | 6 |
|
| 4 | [modal v] keep [pers pn] up [prep] [noun sg] | 5 |
|
