I can propel you can propel he can propel we can propel you can propel they can propel
V-ing form
I can be propelling you can be propelling he can be propelling we can be propelling you can be propelling they can be propelling
Perfect
I can have propelled you can have propelled he can have propelled we can have propelled you can have propelled they can have propelled
V-ing perfect
I can have been propelling you can have been propelling he can have been propelling we can have been propelling you can have been propelling they can have been propelling
Negation
Simple form
I can't propel you can't propel he can't propel we can't propel you can't propel they can't propel
V-ing form
I can't be propelling you can't be propelling he can't be propelling we can't be propelling you can't be propelling they can't be propelling
Perfect
I can't have propelled you can't have propelled he can't have propelled we can't have propelled you can't have propelled they can't have propelled
V-ing perfect
I can't have been propelling you can't have been propelling he can't have been propelling we can't have been propelling you can't have been propelling they can't have been propelling
Interrogative form
Simple form
can I propel? can you propel? can he propel? can we propel? can you propel? can they propel?
V-ing form
can I be propelling? can you be propelling? can he be propelling? can we be propelling? can you be propelling? can they be propelling?
Perfect
can I have propelled? can you have propelled? can he have propelled? can we have propelled? can you have propelled? can they have propelled?
V-ing perfect
can I have been propelling? can you have been propelling? can he have been propelling? can we have been propelling? can you have been propelling? can they have been propelling?
Interro-negative form
Simple form
can't I propel? can't you propel? can't he propel? can't we propel? can't you propel? can't they propel?
V-ing form
can't I be propelling? can't you be propelling? can't he be propelling? can't we be propelling? can't you be propelling? can't they be propelling?
Perfect
can't I have propelled? can't you have propelled? can't he have propelled? can't we have propelled? can't you have propelled? can't they have propelled?
V-ing perfect
can't I have been propelling? can't you have been propelling? can't he have been propelling? can't we have been propelling? can't you have been propelling? can't they have been propelling?