| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | time [prep] [adj] years | 272 |
|
| 2 | time [prep] [num] years | 238 |
|
| 3 | [noun] [prep] 20 years | 237 |
|
| 4 | [noun sg] [prep] 20 years | 171 |
|
| 5 | time [prep] 20 [noun] | 15 |
|
| 6 | time [prep] 20 [noun pl] | 14 |
|
| 7 | time [prep] 20 year | 13 |
|
| 8 | time [prep] 20 years | 13 |
|
| 9 | time [prep] 20 years | 13 |
|
| 10 | time [prep] 20 years | 13 |
|
