The results are in

It's official.
The boys can hear and understand spoken language just fine. They use plenty of inflection. They know at least 20 animal sounds and say them clearly. They even know many of their letter sounds.
Matthew and Jonathan can verbally communicate with others.
When they want to.
The trouble is that like many twins, particularly identical boys, they really don't want to most of the time. They use the smallest parcel of language possible to get their messages across and, at 23 months old, they still refuse to put two words together.
Really refuse.
They shake their heads "no."
"Twin language," the therapist wrote on the form in the evaluation room of the early invention program. They understand each other and have no urgent desire to please us grown-ups with their linguistic skills.
That's why they just stare at folks who try to get them to wave "hello" or "good-bye," yet they holler "bye-bye" and shut the door behind me when I take them to the sitter's (They love going there!). That's why they say only the first sound of so many words. That's why I am frequently puzzled when they open the fridge and ask for milk by some term they came up with entirely on their own.
No therapy necessary, she said. They will figure it out. But we really should teach them sign language if we want to lessen the frequency of tantrums as they struggle with the realization that this isn't going to work forever, she said.
The other therapists had a few things to say too. Mostly, they wondered how we do it. The room was like a preschool, filled with countless cool toys and contraptions that drew Jonathan and Matthew like magnets.
But the force wasn't strong enough.
Within 20 minutes, they were grabbing clipboards, standing on chairs, stealing shoes and flipping through notebooks of the three blissfully ignorant therapists. Their antics earned Jonathan and Matthew a ranking of 36 months for gross motor skills and 31 months for fine motor skills.
They made it only to 21 months for adaptive motor skills because I have, thus far, refused to introduce the potty. "I'm not potty training them until they can at least say the word 'potty,'" I told the therapist.
"Okay," she said. "Here's the sign."

Speak! Please?

I'll admit it.
I've been getting a bit paranoid about the twins and their language skills as their 18-month appointment approaches (It is scheduled for Monday, about three weeks late.). They seem to understand most everything: they run to their highchairs when I ask whether they want to eat; they bring us their shoes or go to the door when we suggest going outside; they can make a wide variety of animal noises on command.
But they just don't really speak.
They have a few clear words. (Well, I can't really think of any that are clear right now, but they do talk a lot.) They practice inflection frequently, usually imitating the true inflection of conversation. They rely heavily on nonverbal expressions, like when they shove books at us, put shoes on our feet or tug on our shirts if we dare try to read the paper, eat some breakfast or even just rest our heads on the table.
Yet when I listen to other toddlers communicate, it just isn't the same.
Despite our best efforts, Jonathan and Matthew are sinking quickly into the language of twinese with such sounds as "nah" for "done" (Where the heck did that come from?) or "seh" for "sit" or "da" for almost anything they want the other twin to see.
So, of course, I turned to Google.
And this is what I found.
According to this recent study, the boys might be behind in language speaking ability, but they are probably right on track as far as overall language development. As twins, they simply tend to use nonverbal skills more often than words.
In fact, they might have an advantage over singletons and twins who do not create their own languages. According to the authors, twin language (or twinese or idioglossia or cryptophasia) enhances language development in a way that is similar to the language enhancement experienced by bilingual children.
Now this study might be flawed.
It is based on a small sampling: the children of 26 mothers of twins and singletons.
But, who cares.
Before I Googled this study, I was worried that my boys might be behind in their communications skills. These folks say Jonathan and Matthew might, instead, be above average.
Their study is good enough for me.