| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | factor which [vb mod] [verb] a [noun] | 7 |
|
| 2 | factor which [modal v] [verb] a [noun sg] | 7 |
|
| 3 | factor which [modal v] [vb infin] a [noun] | 7 |
|
| 4 | factor which [modal v] [verb] a [noun] | 5 |
|
