could tweet
Regular verb: tweet - tweeted- tweeted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could tweet
you could tweet
she could tweet
we could tweet
you could tweet
they could tweet 	I could be tweeting
you could be tweeting
she could be tweeting
we could be tweeting
you could be tweeting
they could be tweeting	I could have tweeted
you could have tweeted
she could have tweeted
we could have tweeted
you could have tweeted
they could have tweeted	I could have been tweeting
you could have been tweeting
she could have been tweeting
we could have been tweeting
you could have been tweeting
they could have been tweeting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't tweet
you couldn't tweet
she couldn't tweet
we couldn't tweet
you couldn't tweet
they couldn't tweet 	I couldn't be tweeting
you couldn't be tweeting
she couldn't be tweeting
we couldn't be tweeting
you couldn't be tweeting
they couldn't be tweeting	I couldn't have tweeted
you couldn't have tweeted
she couldn't have tweeted
we couldn't have tweeted
you couldn't have tweeted
they couldn't have tweeted	I couldn't have been tweeting
you couldn't have been tweeting
she couldn't have been tweeting
we couldn't have been tweeting
you couldn't have been tweeting
they couldn't have been tweeting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I tweet?
could you tweet?
could she tweet?
could we tweet?
could you tweet?
could they tweet? 	could I be tweeting?
could you be tweeting?
could she be tweeting?
could we be tweeting?
could you be tweeting?
could they be tweeting? 	could I have tweeted?
could you have tweeted?
could she have tweeted?
could we have tweeted?
could you have tweeted?
could they have tweeted? 	could I have been tweeting?
could you have been tweeting?
could she have been tweeting?
could we have been tweeting?
could you have been tweeting?
could they have been tweeting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I tweet?
couldn't you tweet?
couldn't she tweet?
couldn't we tweet?
couldn't you tweet?
couldn't they tweet? 	couldn't I be tweeting?
couldn't you be tweeting?
couldn't she be tweeting?
couldn't we be tweeting?
couldn't you be tweeting?
couldn't they be tweeting? 	couldn't I have tweeted?
couldn't you have tweeted?
couldn't she have tweeted?
couldn't we have tweeted?
couldn't you have tweeted?
couldn't they have tweeted? 	couldn't I have been tweeting?
couldn't you have been tweeting?
couldn't she have been tweeting?
couldn't we have been tweeting?
couldn't you have been tweeting?
couldn't they have been tweeting?