Детей нужно научить многим манерам.

Детей нужно научить многим манерам.
Уважать старших, мыть руки перед едой, и прочее. И порой без строгого поведения они не слушают

Results (English) 1:

Children need to teach many manners.Respect their elders, wash hands before eating, etc. And sometimes without strict behavior they don't listen

Results (English) 2:

Children should be taught to many manners.
Respect elders, wash hands before eating, and so on. And sometimes without strict behavior they do not listen

Results (English) 3:

children need to learn many manners. respect your elders, to wash their hands before eating, and so on. and sometimes without a strict conduct they don't listen.