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Are you trying to insinuate that I may know this answer?
(Insinuate : to introduce or imply gradually, or to subtly introduce oneself into an activity.)
His questions about the accident seemed to insinuate that it had been my fault.
She always found a way to insinuate herself into our plans.
Your spelling is correct: insinuate (to infer or suggest, or to wheedle).
She tried to insinuate that I was not telling the truth, but I stood my ground.
No. to recommend involves praise, while to insinuate means to imply and is used in a negative sense.