No | Pattern | Freq | Relations |
---|---|---|---|
1 | [been] [verb] [prep] several | 223 | |
2 | [been] [vb pp] [prep] several | 196 | |
3 | [been] shown [prep] [adj] | 63 | |
4 | [been] shown [prep] [det] | 24 | |
5 | [be] shown [prep] several | 8 | |
6 | [been] shown [prep] several | 5 | |
7 | [been] shown [prep] several | 5 | |
8 | [been] show [prep] several | 5 |