For example consider the sleep which is an intransitive verb, what is the verb for making one to sleep?
Is there any rule or transformation to make such verb using the intransitive verb?
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I don't believe there is a formula that, when used, allows a simple conversion of an intransitive verb to a transitive one.
As far as "sleep" goes, only "lull" and "hypnotize" come to mind. Still, neither of them has actually the meaning you seek, I think. So, instead a compound verbs would be used, e.g. "put to sleep" or "lull to sleep".