Hybridoma Technology ( Production , Purification , and Application )
Uas mind mup
1. PRESENT PERFECT
TENSES
POSITIF
Subject + Have/has +
verb 3
I have taught English
She has taught English
They have taught English
NEGATIVE
Subject + Have/has +
not +verb 3
I have not taught English
She hasn't taught English
They haven't taught English
iNTERROGATIVE
Have/has + subject +
verb 3 ?
Have I taught English ?
Has she taught English ?
Have they taught English
TENSES