must have use open in sentence
Open Verb Forms
| Base form (v1) |
Open |
| Past form (v2) |
Opened |
Past Participle (v3)
-ed form |
Opened |
Present Participle (v4)
‘ing’ form |
Opening |
Present simple (v5)
s / es/ ies |
Opens |
MUST HAVE use -open verb forms
POSITIVE STATEMENT:
I must have opened
situation
We must have opened
situation
You must have opened
situation
They must have opened
situation
He must have opened
situation
She must have opened
situation
It must have opened
situation
Name must have opened
situation
QUESTION:
must I have opened
situation
?
must We have opened
situation
?
must You have opened
situation
?
must They have opened
situation
?
must He have opened
situation
?
must She have opened
situation
?
must It have opened
situation
?
must Name have opened
situation
?
