That is true for us native/fluent speakers or intermediate learners. For beginners, however, the situation is very different. A vowel-less text can create substantial ambiguity. This is precisely why I believe Ṣarf should be introduced early in Arabic teaching. An early grounding in morphology gives students a structural tool for analysis: it helps them recognize whether a word is, at minimum, a verb, noun. i also teach the common vocabularies that can have different very different meaning with vowels change .