Changing chords while maintaining a constant calypso strum* can be challenging. It’s best to first try this with 2 chords that are easy for you to play, like A & D. For example, play A with 2 full calypso patterns and then the same with D, repeat several times. Your goal is to keep the strum going while you change chords, so there are no gaps ~ and therein lies the challenge!  
Play on…
Marlene

*To learn how to successfully change chords while keeping the calypso strum going, listen to my newest podcast ~ episode 60!