Russian ⇄ Chinese Danish Dutch English French German Italian Khmer Latvian Lithuanian Old Church Slavonic Spanish Swedish Vietnamese +

не сомневаюсь stresses
gen.	I'm sure (ekirillo)
inf.	I'll bet ('In the galley. We've eaten.' 'I'll bet you have.' Abysslooker)
ironic.	I suppose so (Abysslooker)
не сомневаюсь!
inf.	I bet! (Фраза переводится разными вариантами, в зависимости от контекста. Franka_LV)
slang	youbetcha (Nata Shkoda)
не сомневайся
gen.	make no mistake (about something • I'll go to the police next time – make no mistake about it. • It commands a premium price, but make no mistake: this is a truly premium phone. 4uzhoj); rest assured! (Taras); count on it ("We can talk about it when you're back on your feet again". "Count on it!" Побеdа); believe it (Ivan Pisarev); rest assured (Ivan Pisarev); be confident (Ivan Pisarev); be certain (Ivan Pisarev); be sure (Ivan Pisarev); trust me (Ivan Pisarev); have faith (Ivan Pisarev); have no doubt (Ivan Pisarev); you can depend on it (Ivan Pisarev); you can rely on it (Ivan Pisarev); be at ease (Ivan Pisarev); feel at ease (Ivan Pisarev); rest easy (Ivan Pisarev); rest in comfort (Ivan Pisarev); leave it to me (Ivan Pisarev); be unconcerned (Ivan Pisarev); trust in this (Ivan Pisarev); know for sure (Ivan Pisarev)
idiom.	you bet (Vadim Rouminsky)
не сомневаться
gen.	make no bones; make no bones about; make no question of; make no doubt; without doubt; rely (4uzhoj); beyond a doubt; have every confidence (that Alexander Demidov); be positive about something (в чём-либо Taras); be past a doubt; keep the faith
busin.	be assured (Johnny Bravo)
inf.	bet one's boots; absolutely think (Technical)
Makarov.	make no bones of; make no enquiry of
rhetor.	be in no doubt (forbes.com Alex_Odeychuk)
slang	bet one's boots
не сомневайтесь
gen.	be sure of something (scherfas); make no mistake (Ivan Pisarev)
idiom.	you bet (Vadim Rouminsky)
не сомневайтесь!
gen.	you bet (Дмитрий_Р)
не сомневаясь
gen.	without a raised eyebrow (Анна Ф)

не сомневаюсь : 228 phrases in 15 subjects

American usage, not spelling	1
Business	1
Chess	1
Cliche / convention	3
General	160
Idiomatic	9
Informal	6
Makarov	31
Mathematics	2
Polite	2
Proverb	5
Rhetoric	2
Scientific	2
Slang	2
Vulgar	1