| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] as [noun] | 364 |
|
| 2 | [pron] serve as [noun] | 78 |
|
| 3 | [pron] [vb past] serve as | 41 |
|
| 4 | [vb past] serve as [noun] | 32 |
|
| 5 | [pron] [vb past] serve [noun] | 18 |
|
