No | Pattern | Freq | Relations |
---|---|---|---|
1 | [adv prt] [prep] a [adj] period [prep] | 16 | |
2 | [adv prt] [prep] a [adj] period [prep] | 16 | |
3 | [adv prt] [prep] a [adj] period [prep] | 14 | |
4 | [adv prt] [prep] a [adj] period of | 10 | |
5 | [adv prt] [prep] a [adj] period of | 10 | |
6 | [adv prt] over a [adj] period [prep] | 6 | |
7 | [adv prt] over a [adj] period [prep] | 6 |