Hi Amalxavier...
This is nice topic...
But after I read your essay. we have same problems, determine subject and verb..
for example:
In this sentece you don't put "verb"
but at the same time(adv)extremely(adv)rewarding(adj)job(noun)
position argue in this part unclear. if you use as verb, you should add noun at the firts sentence.But, if you use as noun, you should change with "argument" then add "verb"
Many argue that this preparation ought to begin from school days itself,
each sentece should have at least subject + verb.. so, we must be careful to build sentence :)
but sometimes I forgot to put verb in my sentence too...