SN4 ""

No	Pattern	Freq
1	[adv] difficult the [noun]	17
2	[Wh adv] difficult the [noun]	10
3	how difficult the [noun]	8
4	how difficult the [noun]	8
5	[adv] difficult the [noun]	7
6	difficult [verb] the [noun]	616
7	difficult [to-vb] the [noun]	613
8	difficult [prep] the [noun]	301
9	difficult [prep] the [noun]	301
10	difficult for the [noun]	212
11	difficult for the [noun]	212
12	difficult [conj] the [noun]	71
13	difficult [subord] the [noun]	55
14	difficult to assess the [noun]	31
15	difficult assess the [noun]	31
16	difficult to avoid the [noun]	24
17	difficult avoid the [noun]	24
18	difficult by the [noun]	23
19	difficult by the [noun]	23
20	difficult in the [noun]	22
21	difficult in the [noun]	22
22	difficult because the [noun]	17
23	difficult because the [noun]	17
24	difficult imagine the [noun]	16
25	difficult to imagine the [noun]	16
26	difficult find the [noun]	15
27	difficult to escape the [noun]	15
28	difficult escape the [noun]	15
29	difficult to find the [noun]	14
30	difficult get the [noun]	13