Can (सकना)
A. POWER/ABILITY (CHHAMTA छमता,SHAKTI शक्ति,YOGYATA योग्यता) .
STRUCTURE
SUBJECT + CAN + V1 + OBJECT
Example:
I can play cricket.
Could (सकता)
A. CAPABILITY (CHHAMTA छमता,SHAKTI शक्ति) .
STRUCTURE
SUBJECT + COULD + V1 + OBJECT
Example:
I could play cricket.
B. POLITENESS (LESS THAN WHOULD)
STRUCTURE:
CHOULD + SUBJECT + V1 + OBJECT
Example:
Example- Chould you give me pen?
CHOULD HAVE (SAKA THA -सका था)
STRUCTURE:
SUBJECT + CHOULD HAVE + V3 + OBJECT
I chould have played cricket.