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Other conditional sentences FIRST CONDITIONAL WITH “UNLESS”

“Unless” can be used instead of “if” in conditional
sentences. “Unless” means “if… not,” so the future result
English allows for some variations in conditional sentence See also: depends on the suggested action not happening.
structures. These give more information about the context Future with “will” 18
of the conditional. Modal verbs 56

CONDITIONAL SENTENCES WITH MODAL VERBS
First, second, and third conditional sentences can use different
modal verbs in their “result” clauses. These can be used to express
uncertainty, possibility, or obligation, amongst other things.
FURTHER EXAMPLES

FIRST CONDITIONAL
In the first conditional,
“will” can be replaced
by a variety of modal
verbs to talk about
different ideas.

Different modal
verbs can go here.

SECOND CONDITIONAL FORMAL THIRD CONDITIONAL
In the second conditional, The third conditional can be made more formal by
“would” can be replaced swapping “had” with the subject and dropping “if.”
by “could” or “might” to
express ability, possibility,
or uncertainty.

THIRD CONDITIONAL
In the third conditional, “would” can be replaced by “could”
or “might” to express ability, possibility, or uncertainty.
FURTHER EXAMPLES

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