英和和英

He can not be in his right mind

He can not be in his senses

He must be out of his senses

He must be out of his mind.

It's all right.

I'd be happy to (do that for you).

No bother.

That should be fine.

That's quite alright.

That is absolutely fine.

Situation normal

I don’t have a problem with that.

Leave it to me

My pleasure.

It's OK.

Sure!

Not a problem.

Go on.

nonchalantly unconcerned

stand no nonsense

needless worry

have no sense of humor

no mean feat

I mean no harm

uncompromising honesty

some kind of sin from a moral point of view

being without worry

being ill-mannered

a faithless wastrel

in no respect