Friends, can you suggest me a way I can explain you that saying
"suggest me" or "explain you" is grammatically wrong ?

ALWAYS REMEMBER -
some verbs like "suggest" and "explain" can only have a second object if this is a prepositional object with "to". Observe these examples -
— He suggested me a plan (incorrect)
— He suggested a plan to me (correct)
— He suggested a plan (correct)
— Can you explain me the situation? (incorrect)
— Can you explain the situation to me (correct)
— Can you explain the situation (correct)
Other such verbs are - admit, announce, demonstrate, describe, introduce, mention, point out, prove, report, say, suggest.
if you consider the meaning of all these verbs, they will appear to be the members of a same family and this fact may help you to remember these words.

EVERY TIME = always. → ✔️

EVERYTIME → ❌
EVERY-TIME → ❌

REFUSE [rih-FYOOZ] = (v.) say no; decline.
REFUSE [REF-yoos] = (n.) trash; rubbish.

DISLIKE = hate.
UNLIKE = different from; not similar to.

UNLIKE Ahmed, I DISLIKE sweet coffee. ☕️

Should of → ❌
Could of → ❌
Would of → ❌
Should have → ✔️
Should’ve → ✔️
Could have → ✔️
Could’ve → ✔️
Would have → ✔️
Would’ve → ✔️

LOSER (n.) = opposite of “winner.”
LOOSER (adj.) = opposite of “tighter.”

Don’t call anyone a “looser.” (You’ll look like a *loser*.)

“Singed” is NOT the past tense of “sing.” 🎤

It’s the past tense of “singe” [sinj]: to burn lightly.

HEAVEN = paradise; opposite of hell.
HAVEN = place of safety or refuge.

I am SUPPOSE TO be at school. → ❌.
I am SUPPOSED TO be at school. → ✔️

The d in “supposed to” is not optional.

A “fiancée” is a bride-to-be. 👰
Her groom-to-be is her “fiancé.” 👱

They are pronounced the same.
Neither is spelled “Feyoncé.” 🙅

In English, using "by" + form of transportation is the way to say it. So, no definite (or indefinite) article is needed.

✓"By bus"
✗"By the bus"
✓"By bike"
✗ "By the bike"