present
|
past
|
future
|
conditional
|
|
---|---|---|---|---|
s1 |
back
|
backed
|
will back
|
would back
|
s2 |
back
|
backed
|
will back
|
would back
|
s3 |
backs
|
backed
|
will back
|
would back
|
p1 |
back
|
backed
|
will back
|
would back
|
p2 |
back
|
backed
|
will back
|
would back
|
p3 |
back
|
backed
|
will back
|
would back
|
present
|
past
|
future
|
conditional
|
|
---|---|---|---|---|
s1 |
am backing
|
was backing
|
will be backing
|
would be backing
|
s2 |
are backing
|
were backing
|
will be backing
|
would be backing
|
s3 |
is backing
|
was backing
|
will be backing
|
would be backing
|
p1 |
are backing
|
were backing
|
will be backing
|
would be backing
|
p2 |
are backing
|
were backing
|
will be backing
|
would be backing
|
p3 |
are backing
|
were backing
|
will be backing
|
would be backing
|
present
|
past
|
future
|
conditional
|
|
---|---|---|---|---|
s1 |
have backed
|
had backed
|
will have backed
|
would have backed
|
s2 |
have backed
|
had backed
|
will have backed
|
would have backed
|
s3 |
has backed
|
had backed
|
will have backed
|
would have backed
|
p1 |
have backed
|
had backed
|
will have backed
|
would have backed
|
p2 |
have backed
|
had backed
|
will have backed
|
would have backed
|
p3 |
have backed
|
had backed
|
will have backed
|
would have backed
|
affirmative
|
negative
|
|
---|---|---|
s1 |
-
|
-
|
s2 |
back
|
don't back
|
s3 |
back
|
don't back
|
p1 |
back
|
don't back
|
p2 |
back
|
don't back
|
p3 |
back
|
don't back
|