| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] an [noun sg] | 483 |
|
| 2 | [verb] at an [noun sg] | 368 |
|
| 3 | is [verb] at [noun sg] | 292 |
|
| 4 | is [verb] at an | 44 |
|
| 5 | is at an [noun sg] | 27 |
|
