je suis allé(e) dans une grande ville
To say 'went on in' in French you would say qui se passait dans.
A major city- the direct translation would be "Ville majeur" I think a better way to say it in French would be to say a "big city" (une grande ville), or a metropolitan area, "Une métropolitaine".
Ta ville est-elle grande ou petite ?
To say "big sister" in French, you would say "grande sœur."
Big is translated 'grand, grande' in French.
A big bell is 'une grosse cloche' in French
grand groupe is how you say big group in French.
"Très grand" is how you would say "very big" in French.
Very big is said: très grand in french.
You would say "nous sommes allés nous promener" in French.
You say "big ears" in French by using the phrase "grandes oreilles."
a big table is translated 'une grande table' in French