SN4 ""

No	Pattern	Freq
1	[be] required for [art]	176
2	[be] required for [art]	176
3	[be] required for [adj]	144
4	[be] required for the	125
5	[be] required for the	125
6	[be] required for [noun]	124
7	[be] required for [noun sg]	87
8	[be] required for [adj]	70
9	[be] required for [det]	69
10	[be] required for a	45
11	[be] required for a	35
12	[be] required for [pron]	31
13	[be] required for [v-ing]	28
14	[be] required for [verb]	28
15	[be] required for [noun pl]	22
16	[be] required for this	17
17	[be] required for this	17
18	[be] required for each	15
19	[be] required for each	15
20	[be] required for [pos pn]	15
21	[be] required for [pers pn]	12
22	[be] required for [noun prp]	11
23	[be] required for an	10
24	[be] required for [adv]	8
25	[be] required for all	8
26	[be] required for [adv]	8
27	[be] required for all	8
28	[be] required for every	6
29	[be] required for every	6
30	[be] required for its	5