मैं अंग्रेज़ी बोलता हूँ - Saying it in English:
1. Correct - I speak English = मैं अंग्रेज़ी बोलता हूँ
2. Incorrect - I am speak English (यहाँ am का इस्तेमाल नहीं होगा. I am = मैं हूँ)
I am speak English - is incorrect English. In simple present tense, we do not need to add 'is/am/are' before the main verb (speak).