Present Perfect Simple vs Present Perfect Continuous

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simple past_regular and irregular verds

Roger yulian Hurtado Raigozaにより

PAST SIMPLE VS PAST PERFECT

Isabel Godoyにより

Present Simple or Continuous

Елена Королеваにより

Categories of grammar

LEONEL ARIZA BALLENにより

Present Perfect Continuous

have+been+verb-ing

Exceptions when adding -ing

final "ie" becomes "y"

lie-->lying

After a short, stressed vowel, the final consonant is doubled

sit--->sitting

Have I been waiting for you?

I have not been waiting for you

I have been waiting for you

Present Perfect Simple

regular verbs

Have they worked?

They have not worked

They have worked

have+infinitive+-ed

irregular verbs

Have they spoken?

They have not spoken

They have spoken

have+ participle form