| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] for two year | 27 |
|
| 2 | have been [verb] for two years | 26 |
|
| 3 | have been [vb pp] for two year | 15 |
|
| 4 | have been [v-ing] for two year | 12 |
|
| 5 | has been [verb] for two year | 9 |
|
| 6 | had been [verb] for two year | 7 |
|
| 7 | have been [verb] for two year | 7 |
|
