| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] for many years | 63 |
|
| 2 | have [been] [vb pp] for many years | 50 |
|
| 3 | have [been] used for many [noun] | 13 |
|
| 4 | have [been] used for many [noun pl] | 13 |
|
| 5 | have [been] used for [adj] years | 12 |
|
| 6 | have [been] used for [det] years | 12 |
|
| 7 | have [been] used for many years | 11 |
|
| 8 | have [be] used for many years | 11 |
|
| 9 | [verb] [been] used for many years | 11 |
|
| 10 | have [been] used [prep] many years | 11 |
|
| 11 | have [been] use for many years | 11 |
|
| 12 | have [been] used for many years | 11 |
|
| 13 | have [been] used for many year | 11 |
|
| 14 | have [been] used [prep] many years | 11 |
|
