He has been (Present Perfect); he was (Past Indefinite);
She has bought (Present Perfect); she bought (Past Indefinite);
They have done (Present Perfect); they did (Past Indefinite);
I have read [red] (Present Perfect); I read [red] (Past Indefinite);
You have seen (Present Perfect); I saw (Past Indefinite);
It have washed (Present Perfect); I washed (Past Indefinite);
They have read [red] (Present Perfect); they read [red] (Past Indefinite);
She has written (Present Perfect); she wrote (Past Indefinite);
We have cleaned (Present Perfect); we cleaned (Past Indefinite);
He has come (Present Perfect); he came (Past Indefinite);
11 the most fa
12 easier
13 cheaper
14 elder
15 more delicious
16 the most beautiful
17 worse
18 more modern
19 the newest
20 younger