I explained that to you with the word example you wrote above which is "NIYAYAKAP" because you were asking about it. You know Tagalog can be a little confusing sometimes, but as long as you can speak it in an understandable way, you can already have a possible conversation with anyone who can speak tagalog. But those infixes needs to be use too. Just like english grammar. Past, present and future. Here in Philippines we called infixes "gitlapi". Mostly gitlapi we used are -um and -in. For examples, sinasabi, from the root word "sabi." In english term, "say or tell". Have you noticed the -in was added in between. From sabi to sinasabi, that because the first letter is a consonant. So that is why we put -in- , and it's not a prefix like what you thought a while ago. But if you want to apply prefix in the word "sabi". You will add -mag as present tense (magsabi), and -nag in a past tense "nagsabi". In future tense, you will add -mag but will repeat the 2nd syllable (magsasabi).

add -in as infix. Root word: tandaan = Tinandaan, tinatandaan, tatandaan. Tulog (sleep) is a little bit tricky, you will use this word depends on how the verb was being done. Example: Matulog ka na. (Go to sleep.) Therefore we used -Ma as prefix. And adding -ma before the root word will make the sentence infinitive and imperative as well as future tense. Example. Matutulog na siya. (He's/She's going to sleep.) -Na as prefix can mean now or already. Example:. Natulog na po siya. (She's already sleeping.) But since you asked me to use infix with the word Tulog. We're going to use tulog in an object focus and add -an after the root word. Example: Tulog+an= Tulugan. (sleep in or on) The -o from the word tulog changed into -u before adding the suffix -an. Since the first letter is consonant, so we'll used -in as infix. Example: Root word= Tulugan in + Tulog + an= Tinulugan (past tense), Tinutulugan (present tense), Tutulugan (future tense)

Hi, You have to be very specific, there's no such words like those exist in tagalog.

Learning the affixes are central to the learning of Tagalog as the different affixes change the shades of meaning, or the meaning itself of the word. Sometimes the root of the word may contain complete meaning (usually nouns like mesa, tao, bahay) but sometimes the roots themselves are neither verbs nor nouns nor adjectives so the affixes provide meaning and even context. Good luck!

So what you're saying is these infixes aren't really necessary? Because root words of a verb already has the prefix for the 3 tenses. Past, present and future. It seems to me that learning infixes isn't vital to becoming fluent in tagalog more of an advancement in talking more affluently in tagalog rather than being fluent tama?