It is necessary.
I made up my mind, then and there, that I would get the necessary million dollars within a week.
In order to study computational linguistics it's necessary to know various languages, however, one also has to be familiar with the use of computers.
According to functionalist theory, acne outbreaks provide a necessary limit on the number of prom attendees.
These things are much better spoken about face to face so that we can draw diagrams and demonstrate timings on logic analyzers and oscilloscopes where necessary.
So it is essential that you take the attitude of looking up yourself the information you feel necessary.
That the king can do no wrong, is a necessary and fundamental principle of the English constitution.
Beyond the Right's populism and the dispersion of the Left which have made this situation possible, I take full responsibility for this defeat and draw the necessary conclusions by retiring from political life after the end of the presidential election.
Fish do not have the brain development that is necessary for the psychological experience of pain or any other type of awareness.
Всё, что нужно|Everything that is necessary
It then became necessary to settle the best route for the line to follow; and that was determined, in the first place, by the shape of the land it had to cross.
She keeps asking us what we would like to wear during our holidays although she knows that we need only a few necessary things.