أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
No they can't speak without grammar, Because the rules are based on English
Of cousre he can, but he won't be able to write. Remember, a newborn child does not learn grammar.
I think people who speak a language without grammar very often lay themselves open to ridicule.
sure you can , but it will not be a perfect language . you will be able just to send the message and being understood to a certain level by others
Basically, we all have to study the basic for any language we learn ,without grammar you can speak somehow if you have vocabulary but still , grammar is essential.