Conjugation is the regular arrangement of the forms of the verb in the various voices
Example: Conjugation on the verb "to be"   
I am,  You are,  .....  They are    (Affirmative, Present Simple)
I have been, You have been, .....   They have been    (Affirmative, Present Perfect)
Not having been   (Negative, Past Participle)
Had I been? Had You been? .....   Had they been? (Interrogative, Past Perfect)

Popular Verbs

fly   cook   start   slim   see   talk   play   shall   carry   drive   teach   lay   pass   get married   put   hang   work   eat   watch   open   remember   decide   send   fall asleep   lose   act   run   begin   feel   do   be born   get up   win   walk   use   choose   wish   tell   wake   borrow   cut   find   give   hit   speak   go   burn   have   drink   buy   live   help   bring   wear   read   try   think   get   like   want   change   swim   look   take   sell   come   ride   write   meet   learn   may   draw   cross   can   stay   lie   know   wake up   love   fall   promise   forget   spend   will   show   die   dive   study   say   listen   leave   break   be   allow   sleep   hear   sing   become   conjugate   make   

Modal Verbs

Can (Could)    Must    Will (Would)    Shall (Should)    Ought    May (Might)