| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keep a close [noun sg] on | 81 |
|
| 2 | keep a close eye on | 48 |
|
| 3 | keep a close eye on | 48 |
|
| 4 | keep a close watch on | 27 |
|
| 5 | keep a close watch on | 27 |
|
| 6 | keeping a close [noun] on | 23 |
|
| 7 | keep a close [noun] on | 19 |
|
| 8 | to keep a close [noun] on | 17 |
|
| 9 | keep a close [noun] on | 9 |
|
| 10 | kept a close [noun] on | 8 |
|
| 11 | keep a close check on | 5 |
|
| 12 | keep a close check on | 5 |
|
