| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at an [noun sg] | 148 |
|
| 2 | are [vb pp] at [noun sg] | 143 |
|
| 3 | are [vb pp] an [noun sg] | 27 |
|
| 4 | are [vb pp] at an | 21 |
|
| 5 | are at an [noun sg] | 17 |
|
