SN4 ""

No	Pattern	Freq
1	[noun] is [adv] for [det]	24
2	[noun sg] is [adv] for [det]	22
3	[pron] is [adv] for [det]	19
4	[pers pn] is [adv] for [det]	17
5	it is [adv] for [det]	17
6	it is [adv] for [det]	17
7	is [adj] [adv] for [det]	22
8	is [adj] [adv] for [det]	22
9	is [verb] [adv] for [det]	16
10	is [adv] [adv] for [det]	15
11	is [vb pp] [adv] for [det]	14
12	is [adv] [adv] for [det]	11
13	is [adv] [adj] for [det]	262
14	is [adv] [adj] for [det]	251
15	is [adv] [verb] for [det]	80
16	is [adv] [vb pp] for [det]	66
17	is [adv] responsible for [det]	23
18	is [adv] responsible for [det]	23
19	is [adv] important for [det]	17
20	is [adv] important for [det]	17
21	is [adv] true for [det]	16
22	is [adv] true for [det]	16
23	is [adv] [noun] for [det]	15
24	is [adv] [noun sg] for [det]	14
25	is [adv] [adv] for [det]	13
26	is [adv] [v-ing] for [det]	13
27	is [adv] good for [det]	12
28	is [adv] difficult for [det]	11
29	is [adv] [adv] for [det]	11
30	is [adv] difficult for [det]	11