be= (present: is,am,are) (past:was,were)(verb:v.ing) (word:noun,adv) (goal: tenses)(tenses:cont)
have= (present: have has) (past:had)(verb:v3) (word:-) (goal: tenses) (tenses:perfect)
do= (present: does do) (past:did) (ver:v1) (word:-) (goal:tenses) (tenses:simple)
modal= (present: can,Will,shall,must,may)(past: could,would,should,hoad to,might) (verb:v1) (word:-) (goal:tenses) (tenses:future)