their -|- The inheritance is theirs because they are the heirs. 

tomato -|- Like potato, this word only uses an -e when you make it plural: tomatoes. 

tomorrow -|- Tomorrow i will go with Tom or Row.  

tyranny -|- Only adding an -n can show the tyranny of a tyrant. 

tangible -|- The beginning of this word is just like tangerine, so keep the tang- and add an –ible.  

technique -|- The –nique in technique makes the "neek" sound. Just remember there's a q, so there'll always be a -u and end it with an –e. 

theories -|- Rooted in theory, drop the –y and add the –ies. If the –eo combo is throwing you off, just think of the word theorize, you can actually hear the ‘o' in it.  

threw/through -|- He threw the ball through the window.  

tongue -|- This word seems all of out sorts. The ‘o' make a short ‘u' sound, and the –u doesn't make a sound and need an –e to hold it up.  

triathlon -|- Triathlon is spelled like decathlon except instead of 10 events there are only 3, hence the tri- prefix.  

twelfth -|- In this word, the F kicked out the V. Example: After eleven come twelve and after eleventh place is twelfth place.  

there -|- This one is simple it's here with a –t in the front.  

tragedy -|- Don't let spelling this word turn your day into a tragedy, just remember the root word, tragic. Simply drop the –ic ending and add the –edy, to make it noun. 

truly -|- Another easy adverb. Just remember it's true, you can truly leave the –e out.