Question

the children play vin the garden.
convert the sentence in present perfect continuous tense

Answer 1

The given sentence can be converted into Present Perfect Continuous Tense as shown and explained below:

The children have been playing in the garden since afternoon.

Explanation

We use the present perfect continuous for an action over a period of time leading up to specific time. We also use 'for' and 'since' with the stated time period or duration.  

The verb form for this tense is:

has/have+been+V1+-ing

Answer 2

Explanation:

the children play vin the garden.

convert the sentence in present perfect continuous tense