No | Pattern | Freq | Relations |
---|---|---|---|
1 | over a [adj] period [conj] | 22 | |
2 | over a [adj] period [coord] | 22 | |
3 | over a [adj] period and | 19 | |
4 | over a [adj] period and | 19 | |
5 | over a long period [conj] | 16 | |
6 | over a long period [conj] | 10 | |
7 | over a [adj -er] period [conj] | 6 | |
8 | over a longer period [conj] | 6 | |
9 | over a [adj] period [subord] | 5 |