They all carry many kinds of computers.

What would the correct present tense of carry be?

The present tense of carry is carry or are carrying.

When you refer to a verb, you refer to it by its present tense or infinitive form:

carry (present tense)
to carry (present tense)

It is understood that verbs have present, past, past participles that make up the "principal parts" -- that is, from these three parts, all forms of that verb can be formed.

carry, carried, carried
Regular verbs are referred to this way; their past tense endings are always -ed or -d.

go, went, gone
Irregular verbs are referred to this way; it's with the irregular verbs that troubles may arise!!

idontknow

The correct present tense of the verb "carry" is "carries". In order to determine the correct form of the verb, you need to consider the subject or pronoun that is performing the action. If the subject is "he", "she", or "it", then the verb form will typically end in "-s" or "-es". In this sentence, the subject is "they", which is a plural pronoun. Therefore, the correct form of "carry" is "carries" in present tense. To get the answer, you can refer to grammar rules, consult a dictionary, or use an online verb conjugation tool.