the top 10 phrase according to me would be:
1)how are you?=तुम कैसे हो?
2)i am good=मैं अच्छा हूँ
3)what would you like to drink?=आप क्या पीना चाहेंगे?
4)where have you gone?=aap kahan gaye the..
5)i am coming=main aa raha hun
6)what are you thinking?=aap kya soch rahe ho?
7)i am talking=main baat kar raha hun
8)i am going=main jaa raha hun
just simple phrases like that....with some slang in it)