SN4 ""

No	Pattern	Freq
1	as is [adv] [vb pp]	173
2	than is [adv] [vb pp]	123
3	[subord] is well [vb pp]	54
4	[subord] is [adv] known	52
5	[subord] is often [vb pp]	50
6	[subord] is generally [vb pp]	37
7	[subord] is [adv] supposed	31
8	[subord] is sometimes [vb pp]	31
9	[subord] is commonly [vb pp]	30
10	[subord] is usually [vb pp]	29
11	[subord] is [adv] assumed	22
12	[subord] is [adv] believed	15
13	[subord] is [adv] suggested	13
14	[subord] is [adv] thought	13
15	[subord] is [adv] done	9
16	[subord] is widely [vb pp]	8
17	[subord] is [adv] required	7
18	[subord] is [adv] implied	7
19	[subord] is [adv] acknowledged	7
20	[subord] is [adv] claimed	6
21	[subord] is normally [vb pp]	6
22	[subord] is popularly [vb pp]	6
23	[subord] is [adv] realised	6
24	[subord] is [adv] found	5
25	[subord] is [adv] realized	5
26	[subord] is [adv] said	5