Explanation

"They take tea every morning".

Whenever a regular habit or habitual action is performed then we use the first form (V1) of the verb

as the sentence forms present indefinite tense in habitual actions

Simple Present Tense (Indefinite Tense):

Formula.

Subject + base form of the verb/verb+s/es(if needed) + rest of the sentence.

ND08-3-2023