SN4 ""

No	Pattern	Freq
1	[verb] [pers pn] difficult	1519
2	find [pers pn] difficult	958
3	make [pers pn] difficult	554
4	[vb past] [pers pn] difficult	382
5	[vb base] [pers pn] difficult	325
6	[vb infin] [pers pn] difficult	302
7	found [pers pn] difficult	268
8	find [pers pn] difficult	256
9	find [pers pn] difficult	226
10	[vb -s] [pers pn] difficult	210
11	[v-ing] [pers pn] difficult	166
12	makes [pers pn] difficult	155
13	made [pers pn] difficult	113
14	[vb pp] [pers pn] difficult	94
15	making [pers pn] difficult	93
16	make [pers pn] difficult	74
17	finding [pers pn] difficult	73
18	make [pers pn] difficult	68
19	found [pers pn] difficult	67
20	finds [pers pn] difficult	53
21	[to-vb] [pers pn] difficult	40
22	made [pers pn] difficult	26
23	to make [pers pn] difficult	25
24	be [pers pn] difficult	22
25	[be] [pers pn] difficult	22
26	[is] [pers pn] difficult	15
27	is [pers pn] difficult	15
28	to find [pers pn] difficult	15
29	[was/were] [pers pn] difficult	6
30	was [pers pn] difficult	6