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)
Example: Conjugation on the Russian verb "быть"   
я буду,  ты будешь,  .....  они будут    (Affirmative, Future Tense)
я не буду,  ты не будешь,  .....  они не будут    (Negative, Future Tense)
был я была́ она .....   мы бы́ли (Interrogative, Past Tense)

Popular Verbs

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

Modal Verbs

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