Language learning is a complex process, every child goes through different kind of processes before speaking a language, the surrounding in which child lives plays an important role in his language learning. If he does not receive input during that stage he may not be able to speak in a proper way again, in case of genie, who was 12-year-old, she was kept apart from his surrounding and given a separate room, as a result, she was unable to produce language although the language was taught to him it was useless because she remains unsuccessful in producing fluent speak. First two years of a child plays an important role in child acquisition.

Furthermore, children have their own grammar, in which they construct their own grammatical speaking patterns. They do not imitate or speak through reinforcement but they speak because of their own innate ability which enables them to differentiate between them. In a critical period, if a child does not receive input, then it is very difficult for him/her to speak again, this is the reason it is a critical period.

This is the period during which the child receives input from his caretakers, relatives or anyone person who is speaking to him/her. Motherese plays an important role in establishing children's language and in building his own sentences. Although, children do not imitate mothers plays a quintessential role because it is the input that helps the child.

Motherese does not mean that only children mother talk to him any person can talk to the baby and respond to motherese rather than adult speech, children prefer motherese because it is less complex, and also it is simple and it is easy for them to understand. Here comes another point that is of children comprehension is better than their production of speech, there are shreds of evidence which proves that children comprehension is better, for example, if a caretaker talks to a child, he understands him because he responds to them through certain postures and gestures.

Motherese is a language that the parents or caretakers use to communicate with a child even when the child is not capable of understanding or producing those sounds or words. This is a pre-linguistic stage, in which the child learns different words or languages by the people who talk to him in his surroundings.

We were asked to conduct a research about the features of Motherese and their application in various communities (Pakistan, America, United Kingdom, Afghanistan, Chinese and Swedish, Philippine). The features of, motherese include object permanence which states that caretaker talk to children only about the things which are present around them.

exaggerated / high/ raised phonologies; in parentheses stress in words is also used so that the children may better be understood.

Pauses: pauses are used repeatedly so children may better have understood

repetitions, words repetition is the common characteristics of parentheses,

 elision, there is an absence or elision means unstressed sounds remain omitted and more focus is on stress syllable.

 substitutions,

lack of poverty of stimulus and behavioristic stances, in any background children, are taken, they will learn the language.

 use of simplified speeches, simple language is used while talking to babies, complex language is avoided.

 Deletion of unstressed syllables, unstressed syllables are deleted.

 immediacy and concreteness, only those sentences are spoken that are present in the environment also parents air caretakers talk to children about the concrete things which they can touch and see.

 harmonization of vowels and consonants, substitutions of (w and j) in place of (l),

 the grammaticality of inputs, parents talk to children taking account of grammar, ungrammatical sentences are avoided by parents, even these kinds of sentences are spoken to them they do not imitate, and their acquisition remained unharmed