It depends on the context
1.I will go somewhere. The tune like wǒ qù
When someone asked : would you like to go to the park? Then if you want to go as well then you could say : 我去！(means I will go )
2. Kinda of swear word (I suppose you are looking for this translation;) the tune could be wǒ or wò and the second is sound could be qū 、qú and qù，it is more casual
Means holy shit or crap or damn it , it often being said when something bad happened or something happened out of your expectations which surprises you.
Its sound normally related to your mood. And also you can decide whether the last sound you will say it shortly or a bit longer.
我去，这都写？