English verb conjugation
CAN PICK

Regular verb: pick - picked - picked

Affirmation

Simple form	V-ing form
I can pick you can pick he can pick we can pick you can pick they can pick	I can be picking you can be picking he can be picking we can be picking you can be picking they can be picking
Perfect	V-ing perfect
I can have picked you can have picked he can have picked we can have picked you can have picked they can have picked	I can have been picking you can have been picking he can have been picking we can have been picking you can have been picking they can have been picking

Negation

Simple form	V-ing form
I can't pick you can't pick he can't pick we can't pick you can't pick they can't pick	I can't be picking you can't be picking he can't be picking we can't be picking you can't be picking they can't be picking
Perfect	V-ing perfect
I can't have picked you can't have picked he can't have picked we can't have picked you can't have picked they can't have picked	I can't have been picking you can't have been picking he can't have been picking we can't have been picking you can't have been picking they can't have been picking

Interrogative form

Simple form	V-ing form
can I pick? can you pick? can he pick? can we pick? can you pick? can they pick?	can I be picking? can you be picking? can he be picking? can we be picking? can you be picking? can they be picking?
Perfect	V-ing perfect
can I have picked? can you have picked? can he have picked? can we have picked? can you have picked? can they have picked?	can I have been picking? can you have been picking? can he have been picking? can we have been picking? can you have been picking? can they have been picking?

Interro-negative form

Simple form	V-ing form
can't I pick? can't you pick? can't he pick? can't we pick? can't you pick? can't they pick?	can't I be picking? can't you be picking? can't he be picking? can't we be picking? can't you be picking? can't they be picking?
Perfect	V-ing perfect
can't I have picked? can't you have picked? can't he have picked? can't we have picked? can't you have picked? can't they have picked?	can't I have been picking? can't you have been picking? can't he have been picking? can't we have been picking? can't you have been picking? can't they have been picking?