| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [adv] [prep] [adj] years | 64 |
|
| 2 | [was/were] [adv] [prep] [num] years | 45 |
|
| 3 | [was/were] [adv] [prep] ten [noun] | 17 |
|
| 4 | [was/were] [adv] [prep] ten [noun pl] | 16 |
|
| 5 | [be] [adv] [prep] ten years | 14 |
|
| 6 | [was/were] [adv] [prep] ten year | 6 |
|
| 7 | [was/were] [adv] [prep] ten years | 6 |
|
| 8 | [was/were] [adv] [prep] ten years | 6 |
|
