Verbs review Lesson 14 enables a review of roots classification and verb conjugation.
In the basic lesson about the Hebrew letters it was mentioned that there are 3 letters that sound
different if a dot is inserted in their midst.
That is:
,, .
Without the dot Beit sounds like "V", Caf sounds like the Hebrew letter "Cheit".
Without the dot, Pay is sound like an "F". One way to remember this principle is by thinking that removing the dot from a letter is like puncturing a ball. As the air comes out and the ball softens, so does the letter.
The three above letters are part of what is known in Hebrew "BeGed-KefeT".
When "Beged-Kefet" appears as the first letter of a word, it is many times dotted. That is less likely when it appears at an end of a syllable.
This point is important when a verb has to be composed from an unvoweled root.
Please examine this rule in reference to this three roots:
,
, 
.
