| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [been] [verb] for [det] years | 38 |
|
| 2 | has [been] [vb pp] for [det] years | 31 |
|
| 3 | [verb] [been] used for [det] years | 12 |
|
| 4 | have [been] used for [det] years | 12 |
|
| 5 | has [been] used for [det] [noun] | 10 |
|
| 6 | has [been] used for [det] [noun pl] | 8 |
|
| 7 | [vb -s] [been] used for [det] years | 7 |
|
| 8 | has [been] used for [adj] years | 7 |
|
| 9 | has [be] used for [det] years | 7 |
|
| 10 | has [been] used [prep] [det] years | 7 |
|
| 11 | has [been] used for [det] years | 7 |
|
| 12 | has [been] use for [det] years | 7 |
|
| 13 | has [been] used [prep] [det] years | 7 |
|
| 14 | has [been] used for [det] year | 7 |
|
