| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] for [adj] years | 301 |
|
| 2 | have [been] [vb pp] for [adj] years | 162 |
|
| 3 | have [been] established for [adj] [noun] | 12 |
|
| 4 | have [been] established for [adj] [noun pl] | 10 |
|
| 5 | have [been] established [prep] [adj] years | 7 |
|
| 6 | have [been] established [prep] [adj] years | 7 |
|
| 7 | have [been] establish for [adj] years | 5 |
|
| 8 | have [been] established for [adj] years | 5 |
|
| 9 | have [be] established for [adj] years | 5 |
|
| 10 | [verb] [been] established for [adj] years | 5 |
|
| 11 | have [been] established for [adj] year | 5 |
|
