| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] [verb] as a | 56 |
|
| 2 | which [modal v] [vb infin] as a | 56 |
|
| 3 | [pron] [modal v] serve as a | 43 |
|
| 4 | which [modal v] serve as [art] | 24 |
|
| 5 | which [modal v] serve as [art] | 24 |
|
| 6 | which [modal v] serve as a | 22 |
|
| 7 | which [modal v] serve [prep] a | 21 |
|
| 8 | which [modal v] serve as a | 21 |
|
| 9 | which [modal v] serve [prep] a | 21 |
|
| 10 | which [modal v] serve as a | 21 |
|
| 11 | which [modal v] serve as a | 21 |
|
| 12 | [Wh det] [modal v] serve as a | 21 |
|
