THERE= a place. not here - THEIR= belongs to them - THEY'RE = short for "They Are". example: They're over there with their friends.
THEN = a point in time; not now. - THAN = used to compare things. example "Better then than now."
-If you tried 4 times to move forward, it was the FOURTH time you went FORTH! ---Something AFFECTS you. You have an EFFECT on something
Some one can win MEDAL made of a METAL like gold for showing his METTLE (courage)
RAIN water falling from the sky. - REIN is for a horse. REIGN is what a king does.