| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [vb base] us [verb] [prep] [art] | 6 |
|
| 2 | but [vb base] us [vb infin] [prep] [art] | 6 |
|
| 3 | but let us [verb] [prep] [art] | 6 |
|
