| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [vb pp] for [noun pl] | 99 |
|
| 2 | has [been] [vb pp] for centuries | 17 |
|
| 3 | has [been] known for [noun pl] | 10 |
|
| 4 | has [been] [vb pp] for years | 5 |
|
| 5 | has [been] made for [noun pl] | 5 |
|
