ABSTRACT
The difficulty here is a terminological one. It seems contradictory to say both 'Suck and sucks are two different words' and 'Suck and sucks are the same word.' The apparent contradiction arises because we are using the word word in two different ways. With a bit of technical jargon we can solve the problem. We can say that suck and sucks are two different WORD-FORMS representing just one LEXEME. Sucking and sucked are other word-forms which also stand for the lexeme SUCK.
