| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [verb] for many years | 27 |
|
| 2 | has been [vb pp] for many years | 24 |
|
| 3 | have been known for many years | 10 |
|
| 4 | [verb] been known for many years | 10 |
|
| 5 | has been known for [det] years | 6 |
|
| 6 | has been known for [adj] years | 6 |
|
| 7 | has [be] known for many years | 5 |
|
| 8 | has been known [prep] many years | 5 |
|
| 9 | has been known [prep] many years | 5 |
|
| 10 | [vb -s] been known for many years | 5 |
|
| 11 | has [been] known for many years | 5 |
|
| 12 | has been known for many [noun pl] | 5 |
|
| 13 | has been known for many year | 5 |
|
| 14 | has been known for many years | 5 |
|
| 15 | has been known for many [noun] | 5 |
|
| 16 | has be known for many years | 5 |
|
| 17 | has been know for many years | 5 |
|
| 18 | has been known for many years | 5 |
|
