| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] for [adj] years | 57 |
|
| 2 | has been [v-ing] [prep] [num] years | 50 |
|
| 3 | has been running [prep] [adj] years | 13 |
|
| 4 | has been [v-ing] [prep] three years | 7 |
|
| 5 | has been [v-ing] [prep] [det] years | 7 |
|
| 6 | has been [v-ing] [prep] three years | 7 |
|
| 7 | has been trying [prep] [adj] years | 5 |
|
