英和和英

It's necessary.

have need of

position or line of employment

want to have

that should be done

do the necessary

something that is indispensable

just as it should be

according to the need

have

of something, to be needed

It is necessary.

to be necessary

something you have to do

of something, to be proper

a necessary thing

by necessity

be due

the degree of indispensability

the matter which must be addressed

lamentable―deplorable

I should have had it.

You were supposed to have it.

do the needful

to meet a need

absolutely necessary

let have

when the need arises

meet a need

a thing which must be done