The infinitive form of "think" is "to think."
The plural present tense of "think" is "think." For example, "They think that it is a good idea."
The future tense of "think" is "will think." For example, "I think she will arrive soon."
The present tense forms of to think are think - thinks
The opposite of think would usually be act.The opposite of think (believe) could be doubt.The opposite motivation from think (use intellect) would be to feel (use emotion).
The perfect tense of "think" is "have thought." For example, "I have thought about it before."
In Latin, the present infinitive is the verb form translated "To ----". So amare is "to love"esse is "to be". Cogitare is "to think".
In an infinitive phrase, it is always a preposition, and something you can do. For example: I like to think about my family. In this sentence to think is an infinitive phrase, and about my family is a prepositional phrase. to think, to be, to run, to do, to rescue, are all some of the MANY infinitives. Think this when you are trying to figure out if it is an infinitive phrase: to and something you can do! If it is something you can do after the preposition, then it is an INFINITIVE!
The infinitive form of "am" is "to be," the infinitive form of "is" is "to be," and the infinitive form of "was" is "to be."
infinitive: think past: thought past participle: thought
you are derives from the infinitive of to be. The infinitive that belongs to 'you are' is 'to be'.
The infinitive form of had and has is to have.
"To be" is the infinitive form of are.
The word jogging is not simply an infinitive. An infinitive is [to + a verb]. To jog would be an infinitive.
The infinitive "to read" is a bare infinitive.
The infinitive form of "was" and "were" is "to be." The infinitive form of "are" is also "to be."
So is not an infinitive. An infinitive is [to + a verb].
The infinitive form of "is am are" is "to be."