| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keep a close eye on | 48 |
|
| 2 | keep a close eye on | 12 |
|
| 3 | keeping a close eye on | 12 |
|
| 4 | [v-ing] a close eye on | 12 |
|
| 5 | [vb infin] a close eye on | 12 |
|
| 6 | to keep a close eye on | 10 |
|
| 7 | [to-vb] a close eye on | 10 |
|
| 8 | keep a close eye on | 7 |
|
| 9 | [vb base] a close eye on | 7 |
|
