| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [prep] [adj] years [unc] | 46 |
|
| 2 | [is] [prep] [num] years [unc] | 46 |
|
| 3 | [be] [prep] two years [unc] | 8 |
|
| 4 | [is] [prep] two [noun] [unc] | 7 |
|
| 5 | [is] [prep] two year [unc] | 7 |
|
| 6 | [is] [prep] two years [unc] | 6 |
|
| 7 | [is] [prep] two [noun pl] [unc] | 6 |
|
| 8 | [is] [prep] two years [unc] | 6 |
|
