1.   But recently my colleagues and I have developed another theory which I think has more interesting implications.

2.   He never developed a theory of individual motivation because he was not interested in the individual.

3.   I have developed a theory to explain recent incidents in the light of what I have learned about you.

4.   Medical researchers have developed two theories to explain how and where the virus began.

5.   Piaget developed his theories based on direct observation of children.

6.   The idea was to develop a theory in which the weak force is carried by a type of particle.

7.   These birds helped Darwin develop his theory of natural selection.

8.   We have even developed theories to justify these distortions by teaching that the high elbow allows greater application of force.

9.   He had developed theories that were profound and capable of exciting relatively few scientists.

10.   He also analysed his own dreams and from these studies developed his theories.