SN4 ""

No	Pattern	Freq
1	it have [adv] [vb pp]	1884
2	it has [adv] [vb pp]	918
3	it had [adv] [vb pp]	641
4	it 's [adv] [vb pp]	318
5	it have also [vb pp]	262
6	it have just [vb pp]	203
7	it have never [vb pp]	185
8	it have already [vb pp]	156
9	it have [adv] got	139
10	it have all [vb pp]	126
11	it have [adv] happened	111
12	it have now [vb pp]	82
13	it have [adv] gone	80
14	it have always [vb pp]	80
15	it have [adv] occurred	55
16	it have only [vb pp]	52
17	it have [adv] had	48
18	it have [adv] come	47
19	it have recently [vb pp]	39
20	it have ever [vb pp]	36
21	it have [adv] taken	35
22	it have [adv] done	35
23	it have actually [vb pp]	34
24	it have [adv] seemed	29
25	it have still [vb pp]	29
26	it have since [vb pp]	28
27	it have even [vb pp]	26
28	it have [adv] begun	25
29	it have almost [vb pp]	24
30	it have previously [vb pp]	23