Conditional sentence (The sentence presupposition) explains
that an activity contrary to other activities. The most common conditional divided
into four parts
a)
Real
Conditional
Real
Conditional (often also referred to as Conditional Type I) which describes about
imagining suppose in accordance with the facts.
b)
Unreal
Conditional (often also referred to as Conditional Type II) which describes the
supposition that no real or imagined
c)
Conditional
type iii
d)
zero
Conditional used as a regret that
happened in the past
Sometimes both of them are called
it’s called if-clauses.