| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [prep] [art] [adj] period | 624 |
|
| 2 | [noun pl] [prep] [art] five-year [noun] | 29 |
|
| 3 | [noun pl] [prep] [art] five-year [noun sg] | 29 |
|
| 4 | [noun] [prep] [art] five-year period | 24 |
|
| 5 | [noun pl] [prep] [art] five-year period | 9 |
|
