| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at it [prep] a long | 10 |
|
| 2 | [verb] at it [prep] a long | 10 |
|
| 3 | [verb] at it for a long | 10 |
|
| 4 | [verb] at it for a long | 10 |
|
| 5 | [vb past] at it [prep] a long | 8 |
|
| 6 | look at it [prep] a long | 6 |
|
| 7 | looked at it [prep] a long | 5 |
|
