'(That) Man works at the gas station.'
[Note: the word 'that' is in parentheses since it literally wasn't mentioned in the Japanese sentence, yet it's necessary in the English one.]
'There is a man by the car.'
'A man is behind the car.'
You may say '[company name] de hataraite imasu,' written in Japanese: '[company name]で働いています
I'm in Gifu.
'I work in a bank' is銀行で勤めています (ginkou de tsutomete imasu) in Japanese. This is pronounced roughly as:銀行で (ginkou de) - geen-koh deh勤めています(tsutomete imasu) - tsoo-toe-meh-tay-mas(uh)The final 'u' sound of勤めています is kind of muttered. You may simply leave it out altogether if you want.
you are always in my heart.
'These people are standing in the stadium.'
'(Those/The) Women are at home/their houses.'
'They are getting off the tube.'
use "ni imasu" examples Tokyo ni imasu, ( I am in Tokyo) nihon ni imasu (I am in Japan)
'Doko ni imasu' means 'where am i' 「どこにいます」
'He is getting off the tube.'