| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] for [det] years | 70 |
|
| 2 | have been [verb] for many years | 63 |
|
| 3 | has been [verb] for [det] years | 38 |
|
| 4 | had been [verb] for [det] years | 37 |
|
| 5 | have been [v-ing] for [det] years | 36 |
|
| 6 | have been [verb] for some years | 24 |
|
| 7 | have been [verb] for [det] years | 23 |
|
| 8 | have been [verb] for several years | 19 |
|
| 9 | have been know for [det] years | 15 |
|
| 10 | have been known for [det] years | 15 |
|
| 11 | have been use for [det] years | 12 |
|
| 12 | have been used for [det] years | 12 |
|
| 13 | 've been [verb] for [det] years | 5 |
|
