telephone talk

ok i was wondering if there was a rough english to japanese translation for the phrase

"can you hold on a secound?"

for when you are talking on the phone? any help would be greatly appreciated

Nyminut,

"Chotto matte kudasai"

I think it would be a bit more natural if you say,
"Chotto mattete kudasai" (with the extra "te")

or a more formal way of saying it would be,
"Shou-shou o-machi kudasai"

thank you so much that really helps umm and also

how do you say "i have to go now" in japanese

A casual way of saying "i have to go now" is;
"soro-soro kiranakya"

Answering the phone a while ago, I realised something.

"Can you hold on a secound? (I'll get him on the phone)":
"Chotto matte kudasai"

"Can you hold on a secound? (I'll be right back)"
"Chotto mattete kudasai"

although they're not strictly that way.

what does the extra て in ちょっと待っててください do grammatically? I haven't heard of it before.

It comes from:
- Chotto matte ite kudasai.
which got shortened into:
- Chotto matte(i)te kudasai.

"matte iru" is the "te-form + iru" construction, meaning "be waiting" = "stay waiting." = "hold on."