Nobita's the Night Before a Wedding / 1999

The movie starts with Dekisugi expressing his love to Shizuka which makes Nobita cry (even though it was a rehearsal for a play in Nobita's school—Nobita thought that it could influence Shizuka to marry Dekisugi). He goes to Doraemon, asking him to take him to the future to see if he and Shizuka will marry

のび太の結婚前夜 / 1999

Dorami-chan: Wow, The Kid Gang of Bandits / The☆Doraemons: Strange, Sweets, Strange? / Doraemon: Nobita's the Night Before a Wedding / 1991