| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [verb] for [det] years | 40 |
|
| 2 | has been [verb] for [det] year | 38 |
|
| 3 | [vb -s] been [vb pp] for [det] year | 33 |
|
| 4 | [vb -s] been [verb] for many year | 27 |
|
| 5 | [vb -s] been [verb] for some year | 10 |
|
| 6 | [vb -s] been [v-ing] for [det] year | 7 |
|
| 7 | [vb -s] been use for [det] year | 7 |
|
| 8 | [vb -s] been used for [det] year | 7 |
|
| 9 | [vb -s] been know for [det] year | 6 |
|
| 10 | [vb -s] been known for [det] year | 6 |
|
