is it normal for 3 & 1/2 yr twins to still have difficulties expressing themselves verbally?
My boys are learning two languages spoken at home and still show signs of difficulty in understanding simple instructions and very much difficulty in pronouncing words and stringing sentences together. They first began verbalizing at a young age however not in a language any of us could understand.
Children who are learning two languages at one time often show a delay initially in their expressive language development, which is their ability to use words to express themselves. In addition, and for a variety of reasons, twins can also sometimes be slightly delayed in their expressive language.
In both instances, they should make progress in their language development and begin to catch up. However, even if they are still a little behind in their ability to express themselves verbally, they should still be able to understand everything that is said to them.
Since you've indicated that your twins are having some difficulties with both their use and understanding of language, it is important that you consult with a speech-language pathologist to have their language evaluated and best determine their needs.
Your school system provides free assessment to any child over the age of 3 for any developmental delays. Call the school district and ask for the special education diagnostician. Request a language assessment for both children. If speech is needed it will be provided free of charge to you.