| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [am/are] [verb] at it [prep] | 12 |
|
| 2 | [pers pn] [am/are] [verb] at it [prep] | 12 |
|
| 3 | we [am/are] [verb] at it [prep] | 7 |
|
| 4 | we [am/are] [verb] at it [prep] | 7 |
|
| 5 | [am/are] [verb] at it [prep] [art] | 9 |
|
| 6 | [am/are] [verb] at it [prep] [art] | 9 |
|
| 7 | [am/are] [verb] at it [prep] a | 6 |
|
| 8 | [am/are] [verb] at it [prep] a | 6 |
|
