SN4 ""

No	Pattern	Freq
31	[is] both a	102
32	[is] largely a	98
33	[is] rather a	97
34	[is] never a	83
35	[is] either a	80
36	[is] then a	73
37	[is] partly a	71
38	[is] primarily a	68
39	[is] sometimes a	63
40	[is] definitely a	57
41	[is] about a	56
42	[is] generally a	53
43	[is] undoubtedly a	46
44	[is] again a	43
45	[is] currently a	42
46	[is] normally a	36
47	[is] surely a	35
48	[is] mainly a	35
49	[is] nevertheless a	33
50	[is] over a	31
51	[is] purely a	31
52	[is] effectively a	31
53	[is] possibly a	28
54	[is] truly a	28
55	[is] neither a	28
56	[is] frequently a	27
57	[is] virtually a	26
58	[is] potentially a	26
59	[is] necessarily a	25
60	[is] however a	25