My wife and I are having fun with our 3 year old daughter's grammar issues. At times, she will use incorrect tense when explaining things to us. We always correct her in a manner that is positive and fun. We want to encourage her to experiment and learn, so we are careful not to offend her or embarass her in any way. She sometimes says, "I hurted my arm" or " I buyed" instead of bought. I find it amazing, just how rapid the learning process is with children. The more something relates to survival, the faster they learn it. It is awesome how they utilize natural prioritization. Have you experienced the same with your toddler?
According to babycenter.com, this pattern of learning is normal.Verbal dexterity is one thing, but grammatical perfection is something else entirely. Three-year-olds make many classic speech errors, one of the most common being tripping up on the past tense. You'll hear them saying, "I goed" or "I wented." Patience and a sense of humor are the best response to these mistakes, which are actually rooted in a funny kind of logic.