SN4 ""

No	Pattern	Freq
1	[adj] [adj] period	964
2	[adj] [adj] period	538
3	[det] [adj] period	413
4	this [adj] period	193
5	this [adj] period	193
6	early [adj] period	109
7	early [adj] period	104
8	any [adj] period	87
9	any [adj] period	87
10	that [adj] period	73
11	that [adj] period	73
12	late [adj] period	72
13	late [adj] period	62
14	[num] [adj] period	58
15	immediate [adj] period	52
16	immediate [adj] period	52
17	[adj] [det] period	43
18	[adj] modern period	42
19	[adj] post-war period	42
20	[adj] post-war period	42
21	[adj] modern period	42
22	[num ord] [adj] period	39
23	[adj] [adj -er] period	28
24	[adj] minute period	28
25	[adj] minute period	28
26	[adj] five-year period	27
27	[adj] same period	27
28	[adj] same period	27
29	[adj] five-year period	27
30	[adj] transitional period	26