| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keeping a close eye | 14 |
|
| 2 | keep a close eye | 12 |
|
| 3 | to keep a close eye | 10 |
|
| 4 | keep a close eye | 7 |
|
| 5 | kept a close eye | 5 |
|
