ASL (American Sign Language) do not follow the same grammar rules as the English language do. It has its own grammar system, separate from that of English. For example, ASL does not use BE verbs (am, is, are, was, were) or anything to indicate the state of “being.” Nor does it use articles (a, an, the). What this means is ASL grammar has its own rules for phonology, morphology, syntax, and pragmatics.
When we sign, we omit out a lot of words-
You would say, "The ball was thrown by the boy."
ASL signers would say, "Throw ball, boy."
To translate their sign language into writing sentences on a piece of paper or typing it out is pretty much difficult for a lot of deaf people. I was fortunate to attend hearing schools growing up until I graduated and I can write fairly good but sometimes I mess up here and there.
I hope I explain it clearly enough? Thanks for asking.
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