Let's start simple: the verb être is, in infinitive form, "to be." It is conjugated in the present-tense as follows:
Je suis (I am) Tu es (you are (singular, informal)) Il est (he is) Elle est (she is) Nous sommes (we are) Vous êtes (you are (plural, formal)) Ils sont (masculine plural) Elles sont (feminine plural)
If I wanted to say, "I am nice," I would say:
Je suis sympa.
Avoir means "to have":
J'ai Tu as Il a Elle a Nous avons Vous avez Ils ont Elles ont
If I wanted to say, "He has an apple," I would say:
Il a une pomme.
Venir means "to come":
Je viens Tu viens Il vient Elle vient Nous venons Vous venez Ils viennent Elles viennent
If I wanted to say, "You all are coming here," I would say:
Vous venez ici.
These three verbs are very basic and necessary for speaking and communicating in French.
