| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [verb] at [art] [noun sg] | 608 |
|
| 2 | [be] [to-vb] at [art] [noun sg] | 102 |
|
| 3 | [am/are] [to-vb] [prep] [art] [noun sg] | 102 |
|
| 4 | [am/are] [to-vb] at [art] [noun] | 18 |
|
