No | Pattern | Freq | Relations |
---|---|---|---|
1 | has be [vb pp] for [det] years | 31 | |
2 | has [been] [vb pp] for [det] years | 31 | |
3 | has been [vb pp] for [det] years | 31 | |
4 | has [be] [vb pp] for many years | 24 | |
5 | has [be] used for [det] years | 7 | |
6 | has [be] [vb pp] for some years | 6 | |
7 | has [be] known for [det] years | 6 |