Yes, it is correct to refer to someone as a PhD fellow if they are currently pursuing a PhD program or conducting research as part of a fellowship related to their doctoral studies.
It is grammatically correct to say it is the time for someone and not it is the time of someone.
Yes, it is correct to say that something impacted someone's life. When you say "impacted on someone's life," you are emphasizing the effect that something had on that person's life.
Yes, it is correct to say "Please contact." This is a commonly used phrase to ask someone to reach out or get in touch with them.
Usually, the phrase is simply "on behalf of", without "the".
"Have you spoken to" is a correct way to ask if someone has had a conversation with someone else.
It would be more correct to say, someone who.
If your dog is male then referring to him as 'he' seems logical.
It is grammatically correct to say it is the time for someone and not it is the time of someone.
Yes, it is correct to say that something impacted someone's life. When you say "impacted on someone's life," you are emphasizing the effect that something had on that person's life.
It is correct English to say "thank someone for something" eg "My wife and I thank you for your kind invitation to your daughter's wedding"
write to someone is the correct word although many people say write someone
Yes, it is correct to say "he works in a newspaper" to indicate that someone is employed by a newspaper company.
To politely correct someone about the spelling of your name, you can simply say, "I appreciate it, but my name is actually spelled correct spelling."
Yes, it is correct to say "Please contact." This is a commonly used phrase to ask someone to reach out or get in touch with them.
Grammatically correct, maybe, but idiomatically wrong. We normally say "buy it for me."
Usually, the phrase is simply "on behalf of", without "the".
Yes, it is correct to say "Did you know about this information?" as a question inquiring if someone is aware of a particular piece of information.