Learn Hardcore Filipino: Huwag mong kalimutan ang telepono mo kahit wala kang oras. - Don't forget your phone even if you don't have time.

Mong is mo (you, genitive) plus the linker -ng. The linker connects mo to the verb kalimutan because, in a negative command with Huwag, the agent pronoun typically links to the verb:

Huwag mong kalimutan...
If another word comes between, the linker attaches to that word instead: Huwag mo akong kalimutan; Huwag mo siyang kalimutan. In careful writing, include the linker. In casual speech, many people say “Huwag mo kalimutan,” but “Huwag mong kalimutan” is the standard form.

Why is it Huwag and not Hindi for “don’t”?

Huwag is used for prohibitions/negative commands: “Don’t …”
Hindi negates statements: “not/no.” Examples:
Huwag kang umalis. = Don’t leave.
Hindi ako aalis. = I will not leave.

Why does mo come before the verb? Can I say “Huwag kalimutan mo …”?

Negative command pattern: Huwag + (ng-case pronoun) + verb phrase. So it’s “Huwag mong kalimutan…,” not “Huwag kalimutan mo…”. If you drop the specific “you,” you can say “Huwag kalimutan ang…,” which is a general reminder.

Why are there two instances of mo? Is that redundant?

They do different jobs:

First mo(ng) = the agent/doer of the verb (you).
Second mo = possessive “your” in ang telepono mo (your phone). So it’s not redundant.

What does ang do in ang telepono mo?

Ang marks the topic/patient (the thing affected). With object-focus verbs like kalimutan, the thing not to forget appears in an ang-phrase: ang telepono mo.

How does kahit work here? Is kahit na different?

Kahit means “even if/although.” You can also say kahit na with essentially the same meaning; kahit na can feel a bit more emphatic or formal. Both are fine.

What exactly does Wala kang oras mean, and why kang?

It literally patterns as “There-is-none you-of time,” i.e., “You have no time.”

Structure: Wala + ANG-pronoun + linker -ng + noun
ka + -ng → kang: Wala kang oras. More examples:
Wala akong pera. = I have no money.
Wala siyang trabaho. = He/She has no job. If you mean “no more time,” say: Wala ka nang oras (nang = na + ng).

Can I move the kahit-clause to the front?

Yes: Kahit wala kang oras, huwag mong kalimutan ang telepono mo. A comma helps readability when the clause comes first.

How would I make this polite or plural?

Use the plural/respect form ninyo and optionally add po:

Singular polite: Huwag mo pong kalimutan ang telepono mo, kahit wala ka pong oras.
Plural/polite: Huwag ninyong kalimutan ang telepono ninyo, kahit wala kayong oras. (Add po as desired: Huwag po ninyong kalimutan…)

Is Wag acceptable instead of Huwag?

Wag (or ’Wag) is very common in casual writing and texting. Huwag is the standard/spelling preferred in formal contexts.

What’s the difference between kalimutan, kakalimutan, nakalimutan, and makalimutan?

kalimutan: base/imperative (object-focus). Huwag mong kalimutan… = Don’t forget…
kakalimutan: future (OF). Huwag mong kakalimutan… = Don’t (ever) forget (later)…
nakalimutan: completed. Nakalimutan ko. = I forgot.
makalimutan: potential/accidental (OF). Baka makalimutan mo. = You might forget.

What’s the role of the linker -ng/na I keep seeing (like in mong, kang)?

Tagalog uses a linker to connect a modifier to what it modifies.

Use -ng after a word ending in a vowel (mo → mong, ka → kang).
Use na after a word ending in a consonant or glottal stop. In this sentence, mong links the agent pronoun mo to the verb, and kang links ka to oras after wala.

Can I say “ang iyong telepono” or “yung telepono mo” instead of “ang telepono mo”?

Yes:

ang telepono mo (very common)
ang iyong telepono (more formal)
yung telepono mo (colloquial; yung is from iyong) All are natural; choose based on formality.

Are there natural alternative phrasings?

A few common ones:

Huwag mong kakalimutan ang telepono mo, kahit nagmamadali ka. (even if you’re in a rush)
Huwag mong iwan ang telepono mo, kahit wala kang oras. (don’t leave your phone)
More general reminder: Huwag kalimutan ang telepono. (no explicit “you”)

Any quick pronunciation tips for tricky parts?

ng is a single sound [ŋ] as in “sing,” even word-finally: mong, kang.
Stress commonly falls as: huWÁG, ka-li-mú-tan, te-LÉ-po-no, ka-HÍT, wa-LÁ, Ó-ras. (Exact stress can vary by speaker/region, but this will be understood.)