English verb conjugation
CAN PROPOSE

Regular verb: propose - proposed - proposed

Affirmation

Simple form	V-ing form
I can propose you can propose he can propose we can propose you can propose they can propose	I can be proposing you can be proposing he can be proposing we can be proposing you can be proposing they can be proposing
Perfect	V-ing perfect
I can have proposed you can have proposed he can have proposed we can have proposed you can have proposed they can have proposed	I can have been proposing you can have been proposing he can have been proposing we can have been proposing you can have been proposing they can have been proposing

Negation

Simple form	V-ing form
I can't propose you can't propose he can't propose we can't propose you can't propose they can't propose	I can't be proposing you can't be proposing he can't be proposing we can't be proposing you can't be proposing they can't be proposing
Perfect	V-ing perfect
I can't have proposed you can't have proposed he can't have proposed we can't have proposed you can't have proposed they can't have proposed	I can't have been proposing you can't have been proposing he can't have been proposing we can't have been proposing you can't have been proposing they can't have been proposing

Interrogative form

Simple form	V-ing form
can I propose? can you propose? can he propose? can we propose? can you propose? can they propose?	can I be proposing? can you be proposing? can he be proposing? can we be proposing? can you be proposing? can they be proposing?
Perfect	V-ing perfect
can I have proposed? can you have proposed? can he have proposed? can we have proposed? can you have proposed? can they have proposed?	can I have been proposing? can you have been proposing? can he have been proposing? can we have been proposing? can you have been proposing? can they have been proposing?

Interro-negative form

Simple form	V-ing form
can't I propose? can't you propose? can't he propose? can't we propose? can't you propose? can't they propose?	can't I be proposing? can't you be proposing? can't he be proposing? can't we be proposing? can't you be proposing? can't they be proposing?
Perfect	V-ing perfect
can't I have proposed? can't you have proposed? can't he have proposed? can't we have proposed? can't you have proposed? can't they have proposed?	can't I have been proposing? can't you have been proposing? can't he have been proposing? can't we have been proposing? can't you have been proposing? can't they have been proposing?