| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] us [prep] a | 16 |
|
| 2 | be [verb] us [prep] a | 16 |
|
| 3 | [be] [v-ing] us [prep] a | 10 |
|
| 4 | [was/were] [verb] us [prep] a | 5 |
|
| 5 | [is] [verb] us [prep] a | 5 |
|
