### Section 6.5

## Comma Splice

Never link two independent clauses with just a comma; this is known as a *comma splice error*. You can correct a comma splice in four ways:

- Separate the independent clauses into two separate sentences. Punctuate both sentences with periods.

- Replace the comma with a semicolon or with a semicolon and a conjunctive adverb such as
*however* or *furthermore*. (The conjunctive adverb is then normally followed by a comma.)

- Replace the comma with a comma and a coordinating conjunction.

- Make one of the clauses into a subordinate clause.

#### Unacceptable

`In 1931 Oppenheimer attempted to find an equation for the photon that wouldbe an analogue to Dirac's equation for the electron`**,** he failedin this effort.

#### Acceptable

`In 1931 Oppenheimer attempted to find an equation for the photon that wouldbe an analogue to Dirac's equation for the electron`**.** He failedin this effort.

#### Acceptable

`In 1931 Oppenheimer attempted to find an equation for the photon that wouldbe an analogue to Dirac's equation for the electron`**;** he failedin this effort.

[or ". . . electron; however, he failed . . ."]

#### Acceptable

`In 1931 Oppenheimer attempted to find an equation for the photon that wouldbe an analogue to Dirac's equation for the electron`**, but** hefailed in this effort.

#### Acceptable

**Although** in 1931 Oppenheimer attempted to find anequation for the photon that would be an analogue to Dirac's equation for theelectron, he failed in this effort.

## Comma Splice ##

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