SN4 ""

No	Pattern	Freq
1	the [adj] [adj] period	403
2	the [adj] [adj] period	341
3	the early [adj] period	101
4	the early [adj] period	96
5	the late [adj] period	71
6	the late [adj] period	61
7	the immediate [adj] period	50
8	the immediate [adj] period	50
9	the [adj] post-war period	39
10	the [adj] modern period	39
11	the [adj] post-war period	39
12	the [adj] modern period	39
13	the [num ord] [adj] period	29
14	the [adj] medieval period	21
15	the [adj] medieval period	21
16	the [adj] saxon period	17
17	the [adj] saxon period	17
18	the [adj -er] [adj] period	15
19	the [adj] postwar period	14
20	the [adj] postwar period	14
21	the [adj] victorian period	13
22	the [adj] victorian period	13
23	the same [adj] period	11
24	the same [adj] period	11
25	the [det] [adj] period	11
26	the first [adj] period	10
27	the whole [adj] period	10
28	the later [adj] period	10
29	the whole [adj] period	10
30	the first [adj] period	10