だったら最初からそう言ってよの英語

That's about it

from the outset

At first, I said that in light manner.

the action of saying something first

I was first to speak.

My heart is satisfied

to speak before others do

You told me that at the very beginning.

from the beginning

I must observe in the first place that...

Could be better could be worse.

at the setout

first of all

the person who is the first to say something

right from the start

Whatever you're doing, starting off on the right foot is essential.

from the (very) first

Suppose you try first.

preceding even the first

Instead of saying up-front that you can't do it, maybe you could try challenging yourself.

first; before anything else

to do something first in order to face a matter

an act of defeating the first enemy encountered in a battle

from the beginning

The idea seemed absurd at first.

I'll start first, and you come on later.

the act of hearing something for the first time

It is the first step which is troublesome.

In the beginning was the Word.

from the beginning