The question is very vague and the sentence is random, not sure what you mean by present. I take it you mean to introduce someone or something, then you could say: "Ima ...... wo go shoukai shimasu" (means: Now I introduce/present .....). Fill in the blank "...." with the person or thing's name you want to present.
"I am going" is already in present tense.Past tense: "I have gone."Future tense: "I will go."
To say 'this is gonna hurt' in Japanese you say 'Kore wa kizutsukeru tsumoridesu'.
During roll call, you may say "Hai (imasu)."
I'm just translating, mate, that's whats going on. or do you mean:- how do i say "whats going on here" in Japanese? if that's the case then "Koko de nani ga okotte iru" is "whats going on here" in Japanese.
Omae wo koroso
Try google translator?
Doko anata wo ikimusa jikan.
pu-re-zen-to [its a present] motte ite kudasai [keep it]
'Nijuu made kazoeru yo.'
You may say 'Ano otoko ha kuruma wo kaimasu.'
For guys and girls it's Genki datta? or Do genki?
"Who is going" as in the present continuous, you say - "Kay Jach-chhey?" if you want to articulate the old way of saying "(Ahoy!) Who goes there!" as an interjection you say " Kay Jae?"