yes of course specially on live interviews or press conferences. nobody's perfect. even presidents commit errors.
If you make any grammatical errors in your report, you will have to redo it.Word processing makes fixing grammatical errors much easier.
What are you trying to ask? Are you trying to say, "What are some manifestations of grammatical errors in the written English language?" Or are you trying to say, "What does 'manifestation of grammatical errors' mean regarding written English?"
The sentence should say "Are there any grammatical errors in this sentence?"
According to the Merriam-Webster dictionary, the word grammatical refers to something that is of or relating to grammar, and something that can be considered to conform to the rules of grammar. Example: "The book had several grammatical errors."
it is a force called grammatical errors and gravity
No, there are no grammatical errors in the sentence you provided. It is grammatically correct.
yes
President Obama has not been accused of any felony.
The Hindu is widely regarded as one of the best English newspapers in India known for its high-quality and accurate language use with fewer grammatical errors compared to other newspapers.
Richard Nixon
John Quincy Adams did not commit suicide. He died at an advanced age from a stroke. No US president has ever committed suicide.
Based on the grammatical errors in your question, you're not quite ready yet.