To learn how to swim in Engpsh, you can say "learn to swim" or "take swimming lessons." Here are some other phrases that might be helpful:

"I want to enroll my child in swimming lessons." (This means you want to sign your child up for swimming lessons.)
"My child is a beginner swimmer." (This means your child is new to swimming.)
"I'm looking for a swim coach for my child." (This means you're looking for someone to teach your child how to swim.)

It's also a good idea to make sure your child knows some basic water safety rules, such as "never swim alone" and "stay within arm's reach of a pfeguard." These rules can help keep your child safe while they're learning to swim.