DS2's speech is very rudimentary and inconsistent. Sometimes he'll clearly say "more" when he wants his cup filling up and at other time, he simply can't get the word out. He has things he says occasionally like "put it" when he wants me to put something on the table for him and the other day, I caught him climbing over the sofa to get under the coffee table and I asked him what he was doing - he replied "I getting". He's said whole, original sentences, in the past eg "I like your chin" but generally, it's like there's a very high wall that he needs to lob his speech over, so it rarely makes it to the other side. Sometimes he's echolalic, with all the consonants turned to "b"
I'm glad he's finally picking up PECS, instead of just wanting to line the cards up, because he's too dyspraxic to reliably sign. I've found it very useful for teaching him concepts, though, such as mine and yours and communicating aches and pains.