| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [verb] [prep] a [noun] | 3451 |
|
| 2 | [am/are] [verb] [prep] a [noun] | 3449 |
|
| 3 | [be] [verb] at a [noun] | 1238 |
|
| 4 | [am/are] [verb] at [art] [noun] | 707 |
|
| 5 | [am/are] [verb] at a [noun] | 128 |
|
