os

• Article

  the

• Pron

gardas

second-person singular present indicative of gardar

están

third-person plural present indicative of estar

nas

• Contraction

  in the

• Pron

non

1. no, not, not at all
2. no (used to show disagreement or negation)
3. no (used to reinforce an affirmation as negation of the alternative - but it can be omitted without changing the meaning)
4. no (reinforces a mandate in interrogative sentences)

entrar

1. to enter
2. to begin
3. tackle (to attempt to take away a ball)

impedir

1. to prevent
2. to impede, stop
3. to hinder, block

portas

second-person singular present indicative of portar