| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [verb] for years | 30 |
|
| 2 | [vb past] [been] [verb] for years | 30 |
|
| 3 | had [been] [verb] for years | 28 |
|
| 4 | [vb past] [been] [v-ing] for years | 19 |
|
| 5 | [vb past] [been] [vb pp] for years | 11 |
|
