| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [prep] [num] year ['s] | 5 |
|
| 2 | [vb mod] be [prep] [num] year ['s] | 5 |
|
| 3 | be [verb] [prep] [num] year ['s] | 5 |
|
| 4 | be [prep] [num] year ['s] [noun sg] | 11 |
|
| 5 | be [prep] [num] year ['s] [noun] | 11 |
|
| 6 | be [prep] [num] year ['s] time | 9 |
|
| 7 | be [prep] [num] year ['s] time | 9 |
|
