| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] which we must | 20 |
|
| 2 | [noun sg] [prep] which we must | 15 |
|
| 3 | [noun pl] [prep] which we must | 5 |
|
| 4 | [prep] which we must [vb infin] | 18 |
|
| 5 | [prep] which we must [verb] | 18 |
|
