| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb base] been [verb] for years | 5 |
|
| 2 | they 've been [verb] for year | 5 |
|
| 3 | they [vb base] been [v-ing] for year | 5 |
|
| 4 | they [vb base] been [verb] for year | 5 |
|
