| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [verb] for many years | 18 |
|
| 2 | [vb past] [been] [vb pp] for many years | 11 |
|
| 3 | [vb past] [been] [v-ing] for many years | 7 |
|
