Necessary
 
 
 
I'll come if necessary.
It's necessary for you to go.
I found it necessary to get a loan.
I found it necessary to ask for help.
I found it necessary to get assistance.
It wasn't necessary for him to bring an umbrella.
Tom said he would draw a map for her if necessary.
I found it necessary to get up early every morning.
That man asked me who I was, but I didn't think it was necessary to answer that question.
I don't think it's necessary for me to sound like a native speaker, I just want to be able to speak fluently.