Чем отличается present continuous от present perfect continuous?

Например:

I'm still cooking now

I've been cooking for 2 hours

И там и там, действие началось в прошлом и продолжается

Choose the correct grammar tenses to translate the following sentences. 1) Кто обычно готовит у вас дома? (present simple; past simple; present perfect; past continuous; present continuous) 2) Ты когда-нибудь пробовал манго?

IW. Choose the right one: Present Perfect or Present Perfect Continuous. 1. We have been / have been having French courses since September. 2. Nigar has read/has been reading some magazines for an hour. 3.

Рассказать о себе, используя разные времена (Past Simple, Present Simple, Future Simple, Past Continuous, Present Continuous, Future Continuous, Past Perfect, Present Perfect, Future Perfect, Past Perfect Continuous, Present Perfect Continuous,

Написать 36 предложений (+,-,?) с I play football во все времена (12) :Present continuous present simple present perfect present perfect continuous past continuous past simple past perfect past perfect continuous future continuous future simple

Помогите сделать из Present Perfect в Past perfect Read the sentences and recollect now the present perfect continuous tense is used: 1. It has been raining for 3 hours already. 2. It is 12 o'clock. Bob has been working since 9 o'clock.