| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [noun] [prep] [adj] years | 1502 |
|
| 2 | [noun] [noun sg] [prep] [adj] years | 970 |
|
| 3 | [noun] period [prep] [adj] [noun] | 126 |
|
| 4 | [noun] period [prep] [adj] [noun pl] | 72 |
|
| 5 | [noun] period [prep] [adj] year | 23 |
|
| 6 | [noun] period [prep] [adj] years | 21 |
|
