I saw a bird in the park.

I am learning how to use the present participle in English.

The present tense is used to express things that are happening now or general facts.

He has already finished writing the report, so we use the present perfect form.

Right now, I am in Tokyo.

She is learning the grammar of the present progressive form.

The Ministry of Agriculture announced new measures to prevent the outbreak of avian flu.

I saw a goose in the park.

I saw a beautiful female bird in the park.

Every morning, a meadowlark comes to sing in my garden.