could have use warn in sentence
Warn Verb Forms
| Base form (v1) |
Warn |
| Past form (v2) |
Warned |
Past Participle (v3)
-ed form |
Warned |
Present Participle (v4)
‘ing’ form |
Warning |
Present simple (v5)
s / es/ ies |
Warns |
could have use - warn verb forms
POSITIVE STATEMENT:
I could have warned
situation
We could have warned
situation
You could have warned
situation
They could have warned
situation
He could have warned
situation
She could have warned
situation
It could have warned
situation
Name could have warned
situation
QUESTION:
could I have warned
situation
?
could We have warned
situation
?
could You have warned
situation
?
could They have warned
situation
?
could He have warned
situation
?
could She have warned
situation
?
could It have warned
situation
?
could Name have warned
situation
?
