| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] as [noun sg] | 360 |
|
| 2 | serve as [noun sg] | 269 |
|
| 3 | [conj] serve as | 165 |
|
| 4 | [conj] serve [noun sg] | 41 |
|
