| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] six months of [noun] | 30 |
|
| 2 | [prep] six months of [noun] | 30 |
|
| 3 | [prep] six months of [noun sg] | 23 |
|
| 4 | after six months of [noun] | 13 |
|
| 5 | after six months of [noun] | 13 |
|
| 6 | within six months of [noun] | 11 |
|
| 7 | within six months of [noun] | 11 |
|
