| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this is [verb] at | 55 |
|
| 2 | this [is] [vb pp] at | 48 |
|
| 3 | this [is] aimed at | 8 |
|
| 4 | this [is] aim at | 8 |
|
| 5 | this [is] do at | 6 |
|
| 6 | this [is] done at | 6 |
|
| 7 | this [is] [v-ing] at | 5 |
|
