| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [prep] [num] years | 80 |
|
| 2 | [be] [adv] [prep] [num] years | 80 |
|
| 3 | been [adv] [prep] [num] [noun] | 68 |
|
| 4 | been [adv] [prep] [num] [noun pl] | 66 |
|
| 5 | been [adv] [prep] [num] years | 46 |
|
| 6 | been [adv] [prep] [adj] years | 41 |
|
| 7 | [been] [adv] [prep] [num] years | 35 |
|
| 8 | been [adv] [prep] [num] year | 35 |
|
