| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] a few years | 87 |
|
| 2 | [vb pp] [prep] a [det] years | 44 |
|
| 3 | [verb] for a [det] years | 34 |
|
| 4 | [verb] within a [det] years | 21 |
|
| 5 | [v-ing] [prep] a [det] years | 12 |
|
| 6 | [verb] in a [det] years | 12 |
|
| 7 | [vb infin] [prep] a [det] years | 11 |
|
| 8 | [vb past] [prep] a [det] years | 11 |
|
| 9 | [verb] after a [det] years | 8 |
|
| 10 | [vb base] [prep] a [det] years | 5 |
|
