そんなに心配することはないと思うよ

N4 そんなに sonna ni so much, that much, like that N4 心配 shinpai worry, concern, anxiety N5 する suru do, perform, try N5 ない nai there isn't, doesn't have N4 思う omou think, feel, suppose

N4 心 shin / kokoro, -gokoro heart, mind, spirit N3 配 hai / kuba.ru distribute, spouse, exile N4 思 shi / omo.u, omoera.ku, obo.su think, penser, pensar

N5 〜と思う to omou Indicates speaker thought opinion or assumption, connects clause with mental expression N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜と to Indicates company, quotation, natural condition, complete list, or direct connection between elements N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information N5 〜よ yo Sentence ending particle adding information to listener, emphasizes statement, expresses certainty or warning