| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] a [det] [noun] | 241 |
|
| 2 | [vb past] [prep] a [det] [noun pl] | 220 |
|
| 3 | [verb] [prep] a [det] years | 87 |
|
| 4 | [vb past] [prep] a [adj] years | 20 |
|
| 5 | [vb past] [prep] a [det] years | 11 |
|
| 6 | [vb past] [prep] a [det] year | 11 |
|
| 7 | [vb past] [prep] [art] [det] years | 11 |
|
| 8 | [vb past] [prep] [art] [det] years | 11 |
|
