Inbreeding is the process by which mating occurs between closely related individuals for the purpose of maintaining or perpetuating certain characteristics. OK My brother cannot distinguish roses from tulips OK I asked the police to do whatever WAS necessary to make the criminal confess his crime. Forget about finishing the essay, because you even haven’t started it. I think I am in lacking in something, but I don’t know what. ok The more you gain experience from the things that you do, the more your ability develops.

Commenting on each sentence respectively: 1. Say "process IN which" instead of "BY which". The reason is that the words that immediately follow describe the process itself, not the results of the process. For example, "Inbreeding is the process in which mating occurs..." or "Inbreeding is the process by which certain characteristics are perpetuated" 2. Perfect! 3. Instead of "in confessing" simply say "confess". The word "criminal" is the subject of that verb. 4. Just the smallest of word order problems! It should be "haven't even started". 5. There shouldn't be an "in" between "am" and "lacking". Aside from that, if you're going to use the contraction "don't" you should probably use the contraction "I'm" in the first clause as well. It sounds more natural if you're consistant. 6. Instead of "much" say "the more" in both clauses. Also, since you mention multiple "things" in the first clause, it makes more sense to say "abilities" in the second. "The more you gain experience from the things you do, the more your abilities develop." Looks like you've got a good feel for the language! Keep it up!