| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [v-ing] [adv] for year | 6 |
|
| 2 | has [be] [v-ing] [adv] for years | 6 |
|
| 3 | has been [v-ing] [adv] for year | 6 |
|
| 4 | has be [v-ing] [adv] for year | 6 |
|
