No | Pattern | Freq | Relations |
---|---|---|---|
1 | have been [vb pp] for use | 26 | |
2 | have been [vb pp] for use | 26 | |
3 | has been [vb pp] for use | 14 | |
4 | had been [vb pp] for use | 6 | |
5 | have been developed for use | 5 | |
6 | have been [vb pp] for use | 5 |
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