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