True, you need some form of checkback, which is an artificial two-club or two-diamond rebid by the responder to ask for more information.
Source: wiktionary
Checkback
//ˈt͡ʃɛkbæk//
Synonyms for "checkback"
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.