SN4 ""

No	Pattern	Freq
1	[noun pl] it has	513
2	[noun pl] it had	184
3	years it have	147
4	[noun pl] it 's	81
5	times it have	25
6	months it have	23
7	days it have	17
8	cases it have	13
9	ways it have	10
10	reasons it have	9
11	problems it have	9
12	areas it have	8
13	things it have	8
14	others it have	7
15	centuries it have	6
16	advantages it have	5
17	schools it have	5
18	miles it have	5
19	studies it have	5
20	systems it have	5