No | Pattern | Freq | Relations |
---|---|---|---|
1 | has [be] used for [det] years | 7 | |
2 | [vb -s] [been] used for [det] years | 7 | |
3 | [vb -s] be used for [det] years | 7 | |
4 | [vb -s] [be] used for many years | 7 | |
5 | [vb -s] been used for [det] years | 7 |
[vb -s] [be] used for [det] years Next page
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