| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] friends for years | 5 |
|
| 2 | [verb] [been] friends for years | 5 |
|
| 3 | [been] friends for [adj] years | 6 |
|
| 4 | [been] friends for [num] years | 5 |
|
