| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been keeping a [noun] on | 7 |
|
| 2 | have been keep a [noun sg] on | 7 |
|
| 3 | have been keep a [noun] on | 7 |
|
| 4 | have been keep a eye on | 5 |
|
| 5 | have been keep a eye on | 5 |
|
| 6 | have been keep an [noun] on | 5 |
|
