AFIRMATIVA

Sujeto + infinitivo sin -to + complementos

En 3º persona del singular añadimos -s/-es/-ies

They work hard / She works hard/ She watches TV/ She studies music/ She plays volleyball

NEGATIVA

Sujeto + don’t /doesn’t + infinitivo sin -to + complementos

(No se añade –s en 3ºPS)

They don’t work hard/ She doesn’t work hard/ She doesn’t watch TV/She doesn’t study music/ She doesn’t play volleyball

INTERROGATIVA

Do / Does + sujeto + infinitivo sin -to + complementos?

(No se añade –s en 3ºPS)

Do they work hard? Does she work hard?/ Does she watch TV?/Does she study music? / Does she play volleyball?