| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keep [art] close [noun sg] on [adj] | 10 |
|
| 2 | keep [art] close eye on [adj] | 9 |
|
| 3 | keep [art] close eye on [adj] | 9 |
|
| 4 | keep a close [noun] on [adj] | 9 |
|
| 5 | keep [art] close [noun] on [det] | 8 |
|
| 6 | keep [art] close [noun] on [adj] | 6 |
|
