| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [prep] two year | 34 |
|
| 2 | have been [verb] [prep] two years | 33 |
|
| 3 | have been [verb] for two year | 27 |
|
| 4 | have been [vb pp] [prep] two year | 22 |
|
| 5 | have been [v-ing] [prep] two year | 12 |
|
| 6 | has been [verb] [prep] two year | 12 |
|
| 7 | have been [verb] [prep] two year | 8 |
|
| 8 | had been [verb] [prep] two year | 8 |
|
