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 can't launch you can't launch he can't launch we can't launch you can't launch they can't launch	I can't be launching you can't be launching he can't be launching we can't be launching you can't be launching they can't be launching
Perfect	V-ing perfect
I can't have launched you can't have launched he can't have launched we can't have launched you can't have launched they can't have launched	I can't have been launching you can't have been launching he can't have been launching we can't have been launching you can't have been launching they can't 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't I launch? can't you launch? can't he launch? can't we launch? can't you launch? can't they launch?	can't I be launching? can't you be launching? can't he be launching? can't we be launching? can't you be launching? can't they be launching?
Perfect	V-ing perfect
can't I have launched? can't you have launched? can't he have launched? can't we have launched? can't you have launched? can't they have launched?	can't I have been launching? can't you have been launching? can't he have been launching? can't we have been launching? can't you have been launching? can't they have been launching?