They haven't been developed properly to do what you want them to.

Effective treatment is necessary for a child to develop properly.

Only a mother can provide the kind of love that is essential for a child to develop properly.

Unfortunately, one of his legs broke as he hit the water, and never developed properly.

The bay is a potential tourist spot if properly developed.

Electric cars will take off once the manufacturing process has been properly developed.

Qualified engineers who were not properly developed in terms of operation.

In such cases, women do not properly develop and release a mature egg.

Whether he would naturally have been left-handed if his right arm had developed properly didn't matter.

I wanted him to develop properly and manage his temper, not get red cards.