Rules of the letter B

The letter B (be) has the same sound / b / as the letter V (uve), which represents a difficulty to write correctly in Spanish.

In addition, there are words that are pronounced the same but writing them with B or with V totally changes their meaning.

Therefore, it is very important to know the Orthographic Rules of the B and also the meaning of the words.

Rules of Words that are written with B

Nº. 1

Before any consonant, is written b, not v. (This rule includes the words that contain bla, ble, bli, blo, blu, bra, bre, bri, bro, bru ).

Nº. 2

The end of the past imperfect of the verbs ending in -ar and of the verb ir.

Nº. 3

The verbs that end in -bir, -buir, as well as all their conjugated forms.

Exceptions:

Nº. 4

Infinitives and conjugated forms of verbs beber, caber, deber, haber y saber.

Nº. 5

The words that begin with the prefixes bi, bis, biz, (which means two or two times).

Nº. 6

The words that begin with the prefixess bene, bien, bon, (whose meaning is good).

Nº. 7

The words that begin with al-, ar-. ur-.

Exceptions:

Nº. 8

The words that begin with ab-, ob-, sub-.

Exceptions:

Nº. 9

After the syllables ca-, ce-, co-, cu-, it is written b and not v.

Exceptions:

Nº. 10

Words that begin with sa-, si-, so-, su-.

Exceptions:

Nº. 11

Words that begin with bo-, y van seguidas de las letras d, f, n, r, t.

Exceptions:

Nº. 12

Words that begin with lab- rab- tab-.

Exceptions:

Nº. 13

Words that begin by bibl-, bu-.

Exceptions:

Nº. 14

Words that begin with trib-, turb-, rib-.

Exceptions:

Nº. 15

Words that end in -bilidad, -bunda, -bundo.

Exceptions:

In addition to the exceptions that appear in the rules, derivatives are also exceptions.