No | Pattern | Freq | Relations |
---|---|---|---|
1 | [modal v] have been a [adj] factor | 9 | |
2 | [vb mod] have been a [adj] factor | 9 | |
3 | may have been a [adj] factor | 5 | |
4 | may have been a [adj] factor | 5 | |
5 | have been a [adj] factor [prep] | 7 | |
6 | have been a [adj] factor [prep] | 7 | |
7 | have been a [adj] factor in | 5 | |
8 | have been a [adj] factor in | 5 |