Hi Few things must be known about ur kid like birth history and development al history If birth history is normal and kid is achieving other mile stone as per the age , ur kid is growing well. N no need to worry

Children's speech and language development follows a typical pattern. For example at first birth day the normal children speak at least one meaningful word, at the age of 2 years they should able to combined two words and at the age of 3years expected to speak in sentences .The deviation in such pattern is considered as delayed speech and language. Early professional help (Speech language therapy) can be very much effective for developing the communication skills and achieving academic goal among such children.

Child needs speech and language  stimulation. If you are feel it's not enough then you have to consult speech and  language pathologist for better speech and language communication skills.