SN4 ""

No	Pattern	Freq
1	[noun pl] is [that]	1508
2	[noun pl] is that	1508
3	[noun pl] is that	1508
4	[noun pl] is [subord]	134
5	[noun pl] is as	49
6	[noun pl] is as	49
7	[noun pl] is because	37
8	[noun pl] is because	37
9	problems is [conj]	34
10	[noun pl] is whether	30
11	[noun pl] is whether	30
12	years is [conj]	23
13	[noun pl] is [coord]	23
14	cases is [conj]	20
15	[noun pl] is if	13
16	[noun pl] is if	13
17	things is [conj]	13
18	studies is [conj]	12
19	schemes is [conj]	12
20	results is [conj]	11
21	groups is [conj]	11
22	terms is [conj]	11
23	matters is [conj]	10
24	proposals is [conj]	10
25	[noun pl] is and	10
26	systems is [conj]	10
27	[noun pl] is and	10
28	accounts is [conj]	10
29	methods is [conj]	9
30	countries is [conj]	9