SN4 ""

No	Pattern	Freq
1	it [is] [adv] use	240
2	it [is] [adv] used	208
3	it [is] [adv] use	203
4	it is [adv] use	196
5	it 's [adv] use	44
6	it [is] also use	37
7	it [is] also use	37
8	it [is] [not/n't] use	37
9	it [is] not use	35
10	it [is] not use	28
11	it [is] [adv] use	20
12	it [is] often use	17
13	it [is] often use	17
14	it [is] still use	16
15	it [is] still use	16
16	it [is] no use	16
17	it [is] no use	16
18	it [is] only use	14
19	it [is] only use	14
20	it [is] [adv] using	12
21	it [is] now use	11
22	it [is] now use	11
23	it [is] sometimes use	7
24	it [is] sometimes use	7
25	it [is] n't use	7
26	it [is] widely use	7
27	it [is] widely use	7
28	it [is] frequently use	6
29	it [is] frequently use	6
30	it [is] mainly use	5