Aller is one of the most common and useful French verbs and has irregular conjugations in most tenses and moods. Aller literally means "to go" and is required to create the near future.
The French verb arriver usually means "to arrive" or "to happen." It's a regular -er verb that requires être as its auxiliary verb in compound tenses/moods.
Avoir is one of the two most important French verbs and has irregular conjugations in just about every tense and mood. Avoir literally means "to have" but also serves an an auxiliary verb and is found in many idiomatic expressions.
Certain aspects of French grammar are a bit different with the causative than with other two-verb constructions.
Devoir is a very common French verb with irregular conjugations and an unusual relationship to some of its English equivalents. Devoir has several meanings related to obligation, supposition, and expectation.
Devoir and falloir are fairly synonymous, but these two French verbs are not interchangeable. Their meanings are slightly different, and they each have additional meanings, depending on how they're used.
Dire is one of the most common and useful French verbs and has irregular conjugations. It literally means "to say" or "to tell," and is also found in many idiomatic expressions.
Two dozen French verbs always require a reflexive pronoun but aren't necessarily reflexive or reciprocal. These "essentially pronominal" verbs can only be used pronominally, as without the pronoun, the verb is meaningless.
Être is one of the two most important French verbs and has irregular conjugations in just about every tense and mood. Être literally means "to be," but also serves as an auxiliary verb and is the key to the passive voice.
One of the most common and useful French verbs, faire literally means "to do" or "to make" but it's also found in many idiomatic expressions and is the key to the causative construction.
The causative is a grammatical construction with a lazy subject who, rather than performing some action himself, is making someone or something else do it: to make something happen, to have something done.
The irregular French verb falloir means "to need," "to be necessary," or "to be lacking." Since falloir is an impersonal verb, it has only one conjugation in each tense and mood: the third person singular; for example, the present tense il faut.
Believe it or not, life in France is so great that one verb just isn't enough: "to live" may be equivalent to habiter or vivre, depending on what exactly you want to say.
Most verbs are personal: they must be conjugated for different grammatical persons. But some verbs are used impersonally, meaning they have only one conjugation, the third person singular.
Verbs are action words that express the action or state of being of a sentence. Every French verb has five to six different conjugations for each tense and mood.