GRAMMAR UNIT 6-1: PRESENT PERFECT

El "present perfect" de cualquier verbo está compuesto por dos elementos: la forma apropiada del verbo auxiliar to have (en presente) y el "past participle" del verbo principal. La forma del "past participle" de un verbo regular es raíz+ed, e.g. played, arrived, looked. En cuanto a los verbos irregulares, consulta la Tabla de verbos irregulares

YO NUNCA

TO WALK, "PRESENT PERFECT"

Afirmativa	Negativa
I have walked	I haven't walked
You have walked	You haven't walked.
He, she, it has walked	He, she, hasn't walked
We have walked	We haven't walked
You have walked	You haven't walked
They have walked	They haven't walked

		Interrogativa
		Have I walked?
		Have you walked?
		Has he, she, it walked?
		Have we walked?
		Have you walked?
		Have they walked?

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British Council

KAHOOT!:

Present Perfect Kahoot!