undertake
现在分词/动名词
undertaking
过去分词
undertaken
# 368
常规的
guarantee
·
tackle
·
attempt
indicative
|
imperfect
|
present
|
past
|
future
|
conditional
|
|
|---|---|---|---|---|
| s1 |
undertake
|
undertook
|
will undertake
|
would undertake
|
| s2 |
undertake
|
undertook
|
will undertake
|
would undertake
|
| s3 |
undertakes
|
undertook
|
will undertake
|
would undertake
|
| p1 |
undertake
|
undertook
|
will undertake
|
would undertake
|
| p2 |
undertake
|
undertook
|
will undertake
|
would undertake
|
| p3 |
undertake
|
undertook
|
will undertake
|
would undertake
|
indicative
|
progressive
|
present
|
past
|
future
|
conditional
|
|
|---|---|---|---|---|
| s1 |
am undertaking
|
was undertaking
|
will be undertaking
|
would be undertaking
|
| s2 |
are undertaking
|
were undertaking
|
will be undertaking
|
would be undertaking
|
| s3 |
is undertaking
|
was undertaking
|
will be undertaking
|
would be undertaking
|
| p1 |
are undertaking
|
were undertaking
|
will be undertaking
|
would be undertaking
|
| p2 |
are undertaking
|
were undertaking
|
will be undertaking
|
would be undertaking
|
| p3 |
are undertaking
|
were undertaking
|
will be undertaking
|
would be undertaking
|
indicative
|
perfect
|
present
|
past
|
future
|
conditional
|
|
|---|---|---|---|---|
| s1 |
have undertaken
|
had undertaken
|
will have undertaken
|
would have undertaken
|
| s2 |
have undertaken
|
had undertaken
|
will have undertaken
|
would have undertaken
|
| s3 |
has undertaken
|
had undertaken
|
will have undertaken
|
would have undertaken
|
| p1 |
have undertaken
|
had undertaken
|
will have undertaken
|
would have undertaken
|
| p2 |
have undertaken
|
had undertaken
|
will have undertaken
|
would have undertaken
|
| p3 |
have undertaken
|
had undertaken
|
will have undertaken
|
would have undertaken
|
imperative
|
+/-
|
affirmative
|
negative
|
|
|---|---|---|
| s1 |
-
|
-
|
| s2 |
undertake
|
don't undertake
|
| s3 |
undertake
|
don't undertake
|
| p1 |
undertake
|
don't undertake
|
| p2 |
undertake
|
don't undertake
|
| p3 |
undertake
|
don't undertake
|
这些动词的意思相似
undertake