| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] [num ord] [adj] months | 431 |
|
| 2 | over [art] [num ord] [num] months | 294 |
|
| 3 | [prep] [art] [num ord] 18 months | 95 |
|
| 4 | over [art] [adj] 18 months | 45 |
|
| 5 | over [art] [num ord] 18 [noun pl] | 30 |
|
| 6 | over [art] [num ord] 18 [noun] | 30 |
|
| 7 | over [art] [num ord] 18 months | 29 |
|
| 8 | over [art] [num ord] 18 months | 29 |
|
| 9 | over [art] [num ord] 18 month | 29 |
|
