SN4 ""

No	Pattern	Freq
1	[noun sg] it have	2140
2	[noun] it has	1669
3	[noun] it had	1066
4	[noun pl] it have	778
5	[noun] it 's	401
6	[noun prp] it have	190
7	time it have	189
8	year it have	186
9	time it have	164
10	way it have	159
11	way it have	149
12	years it have	147
13	fact it have	51
14	fact it have	50
15	course it have	49
16	course it have	48
17	century it have	42
18	effect it have	40
19	year it have	39
20	effect it have	38
21	case it have	38
22	century it have	36
23	past it have	35
24	past it have	35
25	month it have	31
26	day it have	28
27	times it have	25
28	case it have	25
29	reason it have	24
30	months it have	23