| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [prep] [num] year [unc] | 12 |
|
| 2 | be [prep] [num] year [unc] | 12 |
|
| 3 | [be] [prep] [num] years [unc] | 11 |
|
| 4 | [be] [prep] [num] year ['s] | 11 |
|
| 5 | [be] [prep] [num] year ' | 10 |
|
| 6 | [be] [prep] [num] year ' | 10 |
|
| 7 | [be] in [num] year [unc] | 9 |
|
| 8 | [be] in [num] year [unc] | 9 |
|
| 9 | [be] [prep] five year [unc] | 5 |
|
