No | Pattern | Freq | Relations |
---|---|---|---|
1 | has been [vb pp] [prep] some [noun pl] | 63 | |
2 | has [been] [vb pp] in some [noun pl] | 29 | |
3 | has [been] [vb pp] by some [noun pl] | 22 | |
4 | has [been] [vb pp] for some [noun pl] | 9 | |
5 | has [been] [vb pp] [prep] some studies | 6 | |
6 | has [been] [vb pp] [prep] some years | 6 | |
7 | has [been] [vb pp] [prep] some writers | 5 |