SN4 ""

No	Pattern	Freq
1	[verb] it [adv] difficult for [noun]	52
2	make it [adv] difficult for [noun]	52
3	[vb base] it [adv] difficult for [noun]	11
4	make it [adv] difficult for [noun]	11
5	makes it [adv] difficult for [noun]	10
6	[vb -s] it [adv] difficult for [noun]	10
7	[v-ing] it [adv] difficult for [noun]	9
8	making it [adv] difficult for [noun]	9
9	made it [adv] difficult for [noun]	7
10	[vb past] it [adv] difficult for [noun]	7
11	[vb infin] it [adv] difficult for [noun]	6
12	make it [adv] difficult for [noun]	6
13	[vb pp] it [adv] difficult for [noun]	5
14	made it [adv] difficult for [noun]	5
15	it be [adv] difficult for [noun]	40
16	it [be] [adv] difficult for [noun]	40
17	it [is] [adv] difficult for [noun]	30
18	it is [adv] difficult for [noun]	24
19	it [was/were] [adv] difficult for [noun]	10
20	it was [adv] difficult for [noun]	10
21	it [adv] [adv] difficult for [noun]	7
22	it [adv] [adv] difficult for [noun]	7
23	it 's [adv] difficult for [noun]	6
24	it [adv] [adv] difficult for [noun]	7
25	it [adv] more difficult for [noun]	7
26	it [adv] more difficult for [noun]	7
27	it [adv] [adv] difficult for [noun]	7
28	it [adv] difficult for [art] [noun]	27
29	it [adv] difficult for [art] [noun]	27
30	it [adv] difficult for the [noun]	25