SN4 ""

No	Pattern	Freq
1	it is [adj] for [art]	715
2	it is [adj] for [art]	715
3	it is [adj] for the	485
4	it is [adj] for the	485
5	it is [adj] for [noun]	444
6	it is [adj] for [pron]	437
7	it is [adj] for [adj]	350
8	it is [adj] for [pers pn]	330
9	it is [adj] for [noun pl]	243
10	it is [adj] for a	223
11	it is [adj] for a	188
12	it is [adj] for [det]	176
13	it is [adj] for [adj]	143
14	it is [adj] for [noun sg]	126
15	it is [adj] for us	93
16	it is [adj] for we	93
17	it is [adj] for they	87
18	it is [adj] for them	87
19	it is [adj] for [pos pn]	50
20	it is [adj] for you	49
21	it is [adj] for you	49
22	it is [adj] for [indef pn]	47
23	it is [adj] for i	43
24	it is [adj] for me	43
25	it is [adj] for he	41
26	it is [adj] for him	41
27	it is [adj] for [verb]	40
28	it is [adj] for [v-ing]	40
29	it is [adj] for [n mass]	37
30	it is [adj] for an	35