LEXICON vs +V+Inf: # ; +V+Prs: # ; +V+Prs+Sg3:%>es # ; +V+Prt:%>ed # ; +V+Prog:%>ing # ; ! Irregular verbs LEXICON BE +V+Inf:be # ; +V+Prs+Sg1:am # ; +V+Prs+Sg2:are # ; +V+Prs+Sg3:is # ; +V+Prs+Pl:are # ; +V+Prt+Sg:was # ; +V+Prt+Pl:were # ; +V+Prog:being # ; LEXICON HAVE +V+Inf:have # ; +V+Prs+Sg1:have # ; +V+Prs+Sg2:have # ; +V+Prs+Sg3:hass # ; +V+Prs+Pl:have # ; +V+Prt:had # ; +V+Prog:having # ; ! Strong verbs