Infinitive and Contemplated Forms | Filipino Grammar

The Filipino infinitive—also called the basic or neutral form in many descriptions—does not itself present an event as completed, unfolding, or projected. It appears as a dictionary citation, in positive commands, and after predicates such as gusto, dapat, puwede, and marunong. The contemplated form presents an event as not begun and intended, expected, or projected.

English often translates both with to + verb or a future expression, but their grammar differs. Compare dependent Gusto kong magluto “I want to cook” with independent Magluluto ako mamaya “I will cook later.”

Form contrasts across common families

Voice family	Root	Infinitive/basic	Contemplated
actor voice, -um-	kain	kumain	kakain
actor voice, mag-	luto	magluto	magluluto
patient voice, -in	basa	basahin	babasahin
locative voice, -an	sulat	sulatan	susulatan
conveyance/instrumental voice, i-	bigay	ibigay	ibibigay

Contemplated forms normally repeat the first consonant–vowel sequence of the root: lu- in magluluto, ba- in babasahin, su- in susulatan, and bi- in ibibigay. With -um- actor voice, the contemplated form lacks -um- and appears as kakain. These are family-specific patterns, not a single future prefix.

Infinitive/basic forms after another predicate

After a modal, desire, ability, or obligation expression, the dependent event commonly uses the infinitive/basic form.

Gusto kong magluto ng sopas para sa mga bisita.

I want to cook soup for the guests.

Dapat kang magpahinga bago bumalik sa trabaho.

You should rest before returning to work.

Marunong bang bumasa ng Baybayin ang kapatid mo?

Does your sibling know how to read Baybayin?

In gusto kong, pronoun ko takes linker -ng before the dependent event. In dapat kang, ka + -ng links the addressed person to magpahinga. Question particle ba follows marunong before linked -ng connects to bumasa.

The infinitive carries voice. Magluto is actor voice; basahin below is patient voice:

Kailangan mong basahin ang buong kasunduan bago pumirma.

You need to read the entire agreement before signing.

Ang buong kasunduan is the patient pivot selected by basahin. Calling the form “infinitive” does not erase voice or valency.

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The Filipino infinitive is not a bare English-style “to” form. It already belongs to a voice family and determines how its participants are marked.

Infinitive/basic forms in commands

Positive commands normally use the basic form of the selected voice family.

Maghintay ka rito habang kinukuha ko ang resibo.

Wait here while I get the receipt.

Basahin mo ang mensahe bago mo ito ipasa sa pangkat.

Read the message before you forward it to the group.

Ibigay mo kay Lorna ang susi pagkatapos ng pulong.

Give Lorna the key after the meeting.

Actor-voice maghintay, patient-voice basahin, and conveyance ibigay are all basic forms. The command chooses a voice construction just as a statement does.

Prohibitions use huwag with a basic form rather than simply negating a projected statement:

Huwag kang kumain dito dahil bagong pinta ang mesa.

Do not eat here because the table is freshly painted.

This contrasts with declarative Hindi ako kakain dito “I will not eat here,” which uses contemplated kakain because it denies a projected event.

Contemplated forms as independent predicates

The contemplated form presents the event as not yet begun. Future time is common, but the form marks event phase rather than grammatical tense.

Magluluto ako ng hapunan pagkauwi ko.

I will cook dinner when I get home.

Babasahin ni Mina ang ulat bago ang pagpupulong.

Mina will read the report before the meeting.

Ibibigay namin sa klinika ang mga donasyon bukas.

We will give the donations to the clinic tomorrow.

The first is actor voice, the second patient voice, and the third conveyance voice. Exclusive namin identifies a giving group that excludes the addressee. Aspect does not replace voice.

Contemplated aspect can also appear in conditions, intentions, predictions, and habitual sequences where an event is viewed prospectively relative to another point. It should not be renamed “future tense” simply because will is frequent in translation.

Controlled comparison: magluto versus magluluto

Gusto kong magluto ng ginisang gulay ngayong gabi.

I want to cook sautéed vegetables tonight.

Magluluto ako ng ginisang gulay ngayong gabi.

I will cook sautéed vegetables tonight.

The first clause embeds basic magluto under gusto. The second uses contemplated magluluto as the main predicate. English puts to cook in the first and will cook in the second, but Filipino marks the contrast through syntactic dependency and reduplication.

When infinitive and completed forms look identical

Many -um- families have the same surface form in the infinitive/basic and completed cells.

Kumain ka muna bago umalis.

Eat first before leaving.

Kumain si Rafi bago umalis kaninang umaga.

Rafi ate before leaving earlier this morning.

The command contains basic kumain; the statement contains completed kumain. Context, particles, and clause type distinguish them. By contrast, contemplated kakain is visibly different.

—Kakain ka ba rito mamaya? —Oo, pero kailangan kong umalis bago mag-alas-otso.

—Will you eat here later? —Yes, but I need to leave before eight o'clock.

Question kakain is contemplated. Dependent umalis after kailangan is basic/infinitive. The two actor-voice families display different surface morphology.

Negation reveals the construction type

Compare a rejected projection and a prohibition:

Hindi ako magluluto mamaya; may natira pang pagkain.

I will not cook later; there is still food left.

Huwag kang magluto mamaya; ako na ang bahala sa hapunan.

Do not cook later; I will take care of dinner.

Hindi + contemplated negates what the speaker projects for themself. Huwag + basic directs the addressee not to perform the event. English uses will not versus do not, but the Filipino contrast involves negator choice and verb form.

Terminology and genuine limits

Some grammars call the basic form a fourth member of the aspect system; others separate it from finite completed, incompleted, and contemplated forms. Both analyses recognize the practical contrast shown here. The term infinitive is convenient for learners, but it should not invite assumptions from English or Spanish infinitives.

Formation also varies by lexical family. Reduplication is widespread in contemplated forms, but stress, vowel-initial roots, nasal substitution, and specialized affixes can change the surface result. Use the full paradigm of an attested verb instead of generating a form from the root alone.

For lookup conventions, see choosing a dictionary citation form.

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Ask whether the form is dependent or directive, or whether it independently presents an unbegun event. That distinction is more reliable than translating English “to” and “will.”

Common Mistakes

Using contemplated aspect after a desire predicate

❌ Gusto kong magluluto ng sopas mamaya.

Incorrect — the desired event is a dependent complement and uses basic magluto, not independent contemplated magluluto.

✅ Gusto kong magluto ng sopas mamaya.

I want to cook soup later.

Using a basic form for a plain projected statement

❌ Magluto ako ng hapunan mamaya.

Wrong for the neutral statement 'I will cook dinner later' — this basic form can suggest a directive or dependent/hortative reading.

✅ Magluluto ako ng hapunan mamaya.

I will cook dinner later.

Putting contemplated aspect after huwag

❌ Huwag kang kakain sa silid-aralan.

Wrong for the neutral prohibition — huwag ordinarily selects the basic form kumain.

✅ Huwag kang kumain sa silid-aralan.

Do not eat in the classroom.

Assuming kumain always marks a completed event

❌ Anyong naganap lamang ang kumain.

Incorrect analysis — kumain can also be the basic form in a command or dependent construction.

✅ Anyong batayan at anyong naganap ang kumain sa pamilyang ito.

Kumain is both the basic and completed form in this family.

Key Takeaways

The infinitive/basic form is aspect-neutral and common in citations, commands, and dependent complements.
The contemplated form presents an event as not begun, intended, or projected.
Contemplated forms commonly use root-syllable reduplication, but their full shape depends on the voice family.
Hindi + contemplated rejects a projection; huwag + basic forms a prohibition.
In many -um- families, basic and completed forms coincide, so context identifies the use.

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