Navigate the world Knowing another language helps you navigate the world more easily,especially when travelling. What does 'navigate the world' mean? We normally navigate cars, trains or ships but not the world,isn't ?

Which one is coreect ?When should I use hyphen? Fair to middling Or Fair-to-middling

A much greater air of To those who understand life,that would have given a much greater air of truth to my story. What does the noun 'air' imply.Many,uncountable?

to be /to When to use each of them? Please provide some examples. English is an useful language to learn English is an usedul language to be learned

which one is correct when the words are used in normal essay writing ? sports school. sporting school sports schools(plural?) sport schools

Meaning of the following sentence. But efforts do not have to be so ambitious to be beneficial. I guess it implies that it is better that we do not work so hard.

bring forth /brings forth People flock to cities in search of a better life, but at the same time bring forth problems. or People flock to cities in search of a better life, but at the same time brings forth problems. Should we refer to people or people flock to cities (one object?)

help prepare help to prepare It is therefore recommended that parents discuss with their children about real life problems to help prepare them for a more independent but responsible life later on.( A sentence extracted from an essay) or It is therefore recommended that parents discuss with their children about real life problems to help to prepare them for a more independent but responsible life later on.