English verb conjugation
CAN LAUNCH

Regular verb: launch - launched - launched

Affirmation

Simple form	V-ing form
I can launch you can launch he can launch we can launch you can launch they can launch	I can be launching you can be launching he can be launching we can be launching you can be launching they can be launching
Perfect	V-ing perfect
I can have launched you can have launched he can have launched we can have launched you can have launched they can have launched	I can have been launching you can have been launching he can have been launching we can have been launching you can have been launching they can have been launching

Negation

Simple form	V-ing form
I cannot launch you cannot launch he cannot launch we cannot launch you cannot launch they cannot launch	I cannot be launching you cannot be launching he cannot be launching we cannot be launching you cannot be launching they cannot be launching
Perfect	V-ing perfect
I cannot have launched you cannot have launched he cannot have launched we cannot have launched you cannot have launched they cannot have launched	I cannot have been launching you cannot have been launching he cannot have been launching we cannot have been launching you cannot have been launching they cannot have been launching

Interrogative form

Simple form	V-ing form
can I launch? can you launch? can he launch? can we launch? can you launch? can they launch?	can I be launching? can you be launching? can he be launching? can we be launching? can you be launching? can they be launching?
Perfect	V-ing perfect
can I have launched? can you have launched? can he have launched? can we have launched? can you have launched? can they have launched?	can I have been launching? can you have been launching? can he have been launching? can we have been launching? can you have been launching? can they have been launching?

Interro-negative form

Simple form	V-ing form
can I not launch? can you not launch? can he not launch? can we not launch? can you not launch? can they not launch?	can I not be launching? can you not be launching? can he not be launching? can we not be launching? can you not be launching? can they not be launching?
Perfect	V-ing perfect
can I not have launched? can you not have launched? can he not have launched? can we not have launched? can you not have launched? can they not have launched?	can I not have been launching? can you not have been launching? can he not have been launching? can we not have been launching? can you not have been launching? can they not have been launching?