"I require that", "I want that", "I desire that", "I crave that", "I must have that", "I long for that", "I insist on having that", "I yearn for that", "I cannot do without that", "I am in desperate need of that". There are several synonyms for the phrase "I need that" that can be used depending on the situation. Whether it's for a material possession or an emotional need, it's important to communicate effectively with those around us to convey our desires and requirements. By utilizing different synonyms, we can express ourselves in a more nuanced and specific way, resulting in a clearer understanding of our needs.