Here are some real examples I had with my son. His dyslexia was in stealth mode. When he was in kindergarten thru second grade it was undetected by his teachers since he seemed to be reading well.  However, that was because he had memorized the basic words needed for lower-level books.

But he could not remember letter sounds. This is that breakdown in phonological processing at work. When he came to a new word he had no idea how to sound it out and when he spelled, he rarely included vowels because he couldn’t hear them in the words. He couldn’t match the sounds to the letters he needed to write or spell.

He spelled consistently inconsistent. We would be working on spelling a word and he would spell it differently every time. He had one word that was his nemesis word. It took him 3 years to get this word right on repeated spelling tests and every week he would spell it wrong a different way. This word was “friend.” We joke about that now but we when he kept getting it wrong week after week we were all confused and frustrated about why he wasn’t getting it.  It wasn’t until he was home with me during COVID and started taking FLVS classes online that I realized he had dyslexia. But not all kids gets diagnosed with dyslexia and receive early interventions when they help best.