'may did not' is not grammatically correct in written English.
Instead, you should use either 'may not have' or 'might not have.' For example, "John may not have realized the consequences of his actions."
Mr. May did not return a call.
They said that TPN products produced by ITH Pharma after the date of 27 May did not carry the bacteria.
Mrs May did not respond on this.
But Mr Cameron and Home Secretary Theresa May did not let it drop.
She said every MP had been "inundated" with complaints about the issue but Mrs May did not seem to have known what was going on.
Downing Street has since said Ms May did not know about the decision to publish a letter attacking Mr Gove over the handling of the allegations.
Many observers were sceptical when the army insisted its declaration of martial law on 20 May did not amount to a takeover.
Ku Fung May did not act in another film.
British counter-attacks on 22 May did not manage to change the situation.
May did not say this in her late-night statement.
