That may be true, but I'm not so sure.
Yes, you can use both "can" and "may" in the same sentence. For example, "You can call me if you may need help with your homework."
Spring has pervaded the air. you may use pervaded in your sentence.
You may be curious enough to read this sentence.
Pairs and fours may or may not have a coxswain.
Your teachers may surmise that you wrote this sentence but they would be wrong.
and whom may i be talking to
This may be a difficult example.
Such an interruption requires a comma, you may wish to use a Colon or a Semi Colon depending on the construction of the sentence
A sentence with the word deceit is:He may use deceit to reach his goal.
It may take me a while to answer your question.
May I touch your thigh
At this time you may leave the classroom.