Must realize that this phase in language development is temporary.
Even though a bilingual child's performance in either language appears to lag behind that of monolingual speakers, the child may actually possess a total or combined vocabulary and language skills larger than those of monolingual speakers.
What looks like deficiencies in both languages should be more appropriately described as language imbalance.
At certain points in the development of their languages, bilingual children do not perform as well as do native speakers in either language.
I spoke only Spanish until I started school. I can’t remember exactly when it happened, but eventually I lost most of it. I can communicate with my parents, I understand what they’re saying, but I often have trouble finding the right words to answer them. Sometimes they even laugh at my attempts. That’s why I don’t want Breanna to lose the Spanish she learned and used when she was staying with my parents. I want her to keep her home language. I’m glad you use both English and Spanish in the classroom.