| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] [prep] [adj] years [unc] | 39 |
|
| 2 | [adv prt] [prep] [num] years [unc] | 38 |
|
| 3 | [adv] [prep] three years [unc] | 11 |
|
| 4 | [adv prt] [prep] three [noun] [unc] | 9 |
|
| 5 | [adv prt] [prep] three [noun pl] [unc] | 8 |
|
| 6 | [adv prt] [prep] three years [unc] | 7 |
|
| 7 | [adv prt] [prep] three year [unc] | 7 |
|
