| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [vb pp] at [noun] | 139 |
|
| 2 | [been] [vb pp] [adv prt] at [noun] | 33 |
|
| 3 | has [been] [vb pp] [adv prt] at | 26 |
|
| 4 | has [vb pp] [adv prt] at [noun] | 10 |
|
