8 Some Alexandrian and Byzantine (𝔓94vid א* B C 81 365 1506 1739 1881 ) have the infinitive “to be” (εἶναι, einai) following “yourselves“. The infinitive is lacking from some of the Alexandrian and Western texttypes (𝔓46vid A D*,c F G 33vid ). The infinitive is found elsewhere in the majority of Byzantine , suggesting a scribal tendency toward clarification. The lack of infinitive best explains the rise of the other readings. The meaning of the passage is not significantly altered by inclusion or omission, but on internal grounds omission is more likely. includes the infinitive in brackets, indicating doubt as to its authenticity.
9 Greek emphasizes the contrast between these two clauses more than can be easily expressed in English.

In other versions

So you also must consider yourselves dead to sin and alive to God in Christ Jesus.

In the same way, count yourselves dead to sin but alive to God in Christ Jesus.

So, you too consider yourselves dead to sin and alive to God in Christ Jesus.

So you also should consider yourselves to be dead to the power of sin and alive to God through Christ Jesus.

So also you, consider yourselves to be dead to sin, but alive to God in Christ Jesus.

Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.

Public Domain