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Prepositions after verbs

Defect to or defect from?

Use defect from to name the side someone leaves and defect to to name the side they join. Both are common in the same sentence.

Quick answer

How do defect to and defect from differ?

Use defect from for the original group or country and defect to for the new one. Example: The officer defected from the army to the rebels.

Several soldiers defected from the regime.
The scientist defected to another country.
He defected from one gang to another.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
defect from + group

Leaving an organisation or side

Use from to identify the group someone abandons.

Two members defected from the party.
2
defect to + group

Joining a new side

Use to to identify the side or country someone joins.

The pilot defected to the opposition.
3
defect from + source + to + destination

Showing both movement and destination

You can use both prepositions together to describe the full change.

She defected from the company to a rival firm.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
defect from + group
He defected from the movement.
Focuses on the group left behind.
defect to + group
He defected to the movement.
Focuses on the new group joined.
defect from + group + to + group
They defected from the army to the rebels.
Shows both departure and destination.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using only to when the source matters

Add from if you want to mention the original group.

✕ She defected the party to the opposition. ✓ She defected from the party to the opposition.

Omitting to before a destination

Use to before the side or country joined.

✕ The diplomat defected another nation. ✓ The diplomat defected to another nation.

Quick practice

Choose the expression that matches the intended meaning.

1. Several officials defected ___ the ruling party.
2. The athlete defected ___ a rival club.
3. He defected ___ the military ___ the rebels.

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Frequently asked questions

Can defect be used without a preposition?

Usually it is followed by from or to when discussing sides or groups.

Is defect used only in politics?

No. It can also describe leaving organisations, companies, or teams.

Can I use both from and to together?

Yes. This is common when both the old and new affiliations are important.

dabble, in, dabble, with "damage to" or "damage by"? dance to, with, on, in or for? "dangle from" or "dangle in"? dare to, for, on, as or at? dash to, into, out, from or on? daydream about, for, in, of or on? "debate in", "debate on" or "debate with"? deceive by, in, into, on or about? "decide on", "decide to" or "decide by"? declare in, by, on, to or as? decline in, by, from, to or for?

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