| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [prep] three years | 112 |
|
| 2 | [vb past] be [verb] [prep] three | 38 |
|
| 3 | [vb past] be [verb] [prep] years | 33 |
|
| 4 | [vb past] [verb] [prep] three years | 9 |
|
