Cara Mudah Belajar Grammar

Apakah anda sudah bisa menggunakan 16 Tense dalam aktivitas sehari-hari anda???????

I sing a song

I am singing a song

I have sung a song

I have been singing a song

I song a song

I was singing a song

I had sung a song

I had been singin a song

I will sing a song

I will be singing a song