Formal:
* मला तुम्हाला प्रेम आहे (mala tumhala prem aahe) - This is the most formal and respectful way to say "I love you."
Informal:
* मी तुला प्रेम करतो/करते (mee tula prem karto/karte) - This is a more casual way to say "I love you." You would use "karto" if you are male and "karte" if you are female.
Romantic:
* मी तुझ्यावर प्रेम करतो/करते (mee tujhyaavar prem karto/karte) - This is a more romantic and passionate way to say "I love you." You would use "karto" if you are male and "karte" if you are female.
Other expressions of love:
* तुम्ही मला खूप आवडता/आवडता (tumhi mala khup aavadta/aavadta) - This means "I like you very much."
* मी तुम्हाला खूप प्रेम करतो/करते (mee tumhala khup prem karto/karte) - This means "I love you very much."
It's important to note that the appropriate expression of love will depend on the relationship you have with the person you are talking to.