No | Pattern | Freq | Relations |
---|---|---|---|
1 | [prep] a period | 2137 | |
2 | [prep] a period | 2137 | |
3 | over a period | 681 | |
4 | over a period | 681 | |
5 | for a period | 517 | |
6 | for a period | 517 | |
7 | [verb] a period | 409 | |
8 | be a period | 232 | |
9 | [be] a period | 232 | |
10 | in a period | 180 | |
11 | in a period | 180 | |
12 | after a period | 175 | |
13 | after a period | 175 | |
14 | [adv] a period | 152 | |
15 | [was/were] a period | 123 | |
16 | during a period | 110 | |
17 | during a period | 110 | |
18 | was a period | 108 | |
19 | [conj] a period | 101 | |
20 | [vb past] a period | 88 | |
21 | [v-ing] a period | 75 | |
22 | [adv prt] a period | 74 | |
23 | of a period | 74 | |
24 | of a period | 74 | |
25 | [adv] a period | 69 | |
26 | over a period | 67 | |
27 | over a period | 67 | |
28 | to a period | 63 | |
29 | to a period | 63 | |
30 | [vb -s] a period | 63 |