English verb conjugation
CAN DEVELOP

Regular verb: develop - developed - developed

Affirmation

Simple form	V-ing form
I can develop you can develop he can develop we can develop you can develop they can develop	I can be developing you can be developing he can be developing we can be developing you can be developing they can be developing
Perfect	V-ing perfect
I can have developed you can have developed he can have developed we can have developed you can have developed they can have developed	I can have been developing you can have been developing he can have been developing we can have been developing you can have been developing they can have been developing

Negation

Simple form	V-ing form
I can't develop you can't develop he can't develop we can't develop you can't develop they can't develop	I can't be developing you can't be developing he can't be developing we can't be developing you can't be developing they can't be developing
Perfect	V-ing perfect
I can't have developed you can't have developed he can't have developed we can't have developed you can't have developed they can't have developed	I can't have been developing you can't have been developing he can't have been developing we can't have been developing you can't have been developing they can't have been developing

Interrogative form

Simple form	V-ing form
can I develop? can you develop? can he develop? can we develop? can you develop? can they develop?	can I be developing? can you be developing? can he be developing? can we be developing? can you be developing? can they be developing?
Perfect	V-ing perfect
can I have developed? can you have developed? can he have developed? can we have developed? can you have developed? can they have developed?	can I have been developing? can you have been developing? can he have been developing? can we have been developing? can you have been developing? can they have been developing?

Interro-negative form

Simple form	V-ing form
can't I develop? can't you develop? can't he develop? can't we develop? can't you develop? can't they develop?	can't I be developing? can't you be developing? can't he be developing? can't we be developing? can't you be developing? can't they be developing?
Perfect	V-ing perfect
can't I have developed? can't you have developed? can't he have developed? can't we have developed? can't you have developed? can't they have developed?	can't I have been developing? can't you have been developing? can't he have been developing? can't we have been developing? can't you have been developing? can't they have been developing?