No | Pattern | Freq | Relations |
---|---|---|---|
1 | it [modal v] be [pron] duty [to-vb] | 8 | |
2 | it [modal v] [be] [pos pn] duty [to-vb] | 8 | |
3 | it [vb mod] [be] [pron] duty [to-vb] | 8 | |
4 | it [modal v] [be] [pron] duty [to-vb] | 8 | |
5 | it [modal v] be [pron] duty [to-vb] | 8 |