Adverbs can be placed in various places of a sentence. For instance, adverbs may be placed before an adjective:

It is not very bad – यह बहुत बुरा नहीं है (very = adverb)

यह = it. बहुत = very. बुरा = bad. नहीं = not. है = is.

Adverbs can also be placed before a verb :

Suniil walks fast – सुनील तेज चलती है (fast= adverb)

सुनील = Suniil. तेज = fast.  चलती = walks. है = is.

Adverbs can also precede another adverb:

I like it very much – मैं इसे बहुत चाहता हूँ (adverbs = very, much)

मैं = I.  इसे = like.  बहुत = very. चाहता = much. हूँ = is.

There are pure adverbs like “today”, “tomorrow” and adverbs that can be formed with the postposition से.

She did her work very happily – उसने अपना कम ख़ुशी से किया (adverbs = very, happily)

उसने = she. अपना = own. कम = work. ख़ुशी = happines. से = with. किया = did.

There are adverbs of the interrogative:

Why are you sad? – आप उदास क्यों हैं (adverb = why)

आप = you. उदास = sad. क्यों = why. हैं = are.

There are also adverbs of place and direction:

It is colder outside than inside: बाहर से अंदर अधिक ठंड़ा है (adverbs – outside/inside)

बाहर = outside.  से = from.  अंदर = inside.  अधिक = more. ठंड़ा = cold.  है = hai.