| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a close [noun sg] on | 83 |
|
| 2 | keep a close [noun] on | 81 |
|
| 3 | [verb] a close eye on | 48 |
|
| 4 | [verb] a close eye on | 48 |
|
| 5 | [verb] a close watch on | 28 |
|
| 6 | [verb] a close watch on | 28 |
|
| 7 | [v-ing] a close [noun] on | 24 |
|
| 8 | keeping a close [noun] on | 23 |
|
| 9 | [vb infin] a close [noun] on | 19 |
|
| 10 | keep a close [noun] on | 19 |
|
| 11 | [to-vb] a close [noun] on | 18 |
|
| 12 | to keep a close [noun] on | 17 |
|
| 13 | [vb base] a close [noun] on | 9 |
|
| 14 | keep a close [noun] on | 9 |
|
| 15 | [vb past] a close [noun] on | 8 |
|
| 16 | kept a close [noun] on | 8 |
|
| 17 | [verb] a close check on | 5 |
|
| 18 | [verb] a close check on | 5 |
|
