SN4 ""

No	Pattern	Freq
1	[verb] it [adv] difficult [conj]	36
2	make it [adv] difficult [conj]	22
3	find it [adv] difficult [conj]	14
4	[v-ing] it [adv] difficult [conj]	8
5	[vb past] it [adv] difficult [conj]	8
6	making it [adv] difficult [conj]	6
7	[vb infin] it [adv] difficult [conj]	6
8	[vb base] it [adv] difficult [conj]	6
9	[vb -s] it [adv] difficult [conj]	5
10	found it [adv] difficult [conj]	5
11	makes it [adv] difficult [conj]	5
12	it be [adv] difficult [conj]	42
13	it [be] [adv] difficult [conj]	42
14	it [is] [adv] difficult [conj]	31
15	it is [adv] difficult [conj]	18
16	it 's [adv] difficult [conj]	13
17	it was [adv] difficult [conj]	11
18	it [was/were] [adv] difficult [conj]	11
19	it [adv] difficult [to-vb] [conj]	19
20	it [adv] difficult [verb] [conj]	19
21	it [adv] difficult [conj] [adj]	14
22	it [adv] difficult [conj] [adj]	14
23	it [adv] difficult [conj] [pron]	13
24	it [adv] difficult [conj] [pers pn]	11
25	it [adv] difficult [conj] possible	8
26	it [adv] difficult [conj] possible	8
27	it [adv] difficult [conj] [adv]	7
28	it [adv] difficult [conj] [adv]	7
29	it [adv] difficult [conj] it	5
30	it [adv] difficult [conj] it	5