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)
Example: Conjugation on the Latin verb "Esse"   
sum, es, est, sumus, estis, sunt (Affirmative, Present Simple)
eram, erâs, erat, erâmus, erâtis, erant (Affirmative, Past Simple)
erô, eris, erit, erimus, eritis, erunt (Affirmative, Future Simple)

Popular Verbs

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

Modal Verbs

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