present
|
past
|
future
|
conditional
|
|
---|---|---|---|---|
s1 |
understand
|
understood
|
will understand
|
would understand
|
s2 |
understand
|
understood
|
will understand
|
would understand
|
s3 |
understands
|
understood
|
will understand
|
would understand
|
p1 |
understand
|
understood
|
will understand
|
would understand
|
p2 |
understand
|
understood
|
will understand
|
would understand
|
p3 |
understand
|
understood
|
will understand
|
would understand
|
present
|
past
|
future
|
conditional
|
|
---|---|---|---|---|
s1 |
am understanding
|
was understanding
|
will be understanding
|
would be understanding
|
s2 |
are understanding
|
were understanding
|
will be understanding
|
would be understanding
|
s3 |
is understanding
|
was understanding
|
will be understanding
|
would be understanding
|
p1 |
are understanding
|
were understanding
|
will be understanding
|
would be understanding
|
p2 |
are understanding
|
were understanding
|
will be understanding
|
would be understanding
|
p3 |
are understanding
|
were understanding
|
will be understanding
|
would be understanding
|
present
|
past
|
future
|
conditional
|
|
---|---|---|---|---|
s1 |
have understood
|
had understood
|
will have understood
|
would have understood
|
s2 |
have understood
|
had understood
|
will have understood
|
would have understood
|
s3 |
has understood
|
had understood
|
will have understood
|
would have understood
|
p1 |
have understood
|
had understood
|
will have understood
|
would have understood
|
p2 |
have understood
|
had understood
|
will have understood
|
would have understood
|
p3 |
have understood
|
had understood
|
will have understood
|
would have understood
|
affirmative
|
negative
|
|
---|---|---|
s1 |
-
|
-
|
s2 |
understand
|
don't understand
|
s3 |
understand
|
don't understand
|
p1 |
understand
|
don't understand
|
p2 |
understand
|
don't understand
|
p3 |
understand
|
don't understand
|