SN4 ""

No	Pattern	Freq
1	[noun] required for	563
2	[noun sg] required for	336
3	[noun pl] required for	215
4	time required for	34
5	time required for	33
6	skill required for	19
7	information required for	18
8	information required for	18
9	skills required for	18
10	condition required for	13
11	[n mass] required for	12
12	element required for	11
13	standard required for	11
14	conditions required for	11
15	work required for	9
16	work required for	9
17	element required for	9
18	technique required for	8
19	standards required for	7
20	resource required for	7
21	resources required for	7
22	minimum required for	7
23	minimum required for	7
24	equipment required for	6
25	equipment required for	6
26	techniques required for	6
27	abilities required for	5
28	provision required for	5
29	ability required for	5