could lose weight
Regular verb: lose weight - lose weighted- lose weighted

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could lose weight
you could lose weight
she could lose weight
we could lose weight
you could lose weight
they could lose weight 	I could be lose weighting
you could be lose weighting
she could be lose weighting
we could be lose weighting
you could be lose weighting
they could be lose weighting	I could have lose weighted
you could have lose weighted
she could have lose weighted
we could have lose weighted
you could have lose weighted
they could have lose weighted	I could have been lose weighting
you could have been lose weighting
she could have been lose weighting
we could have been lose weighting
you could have been lose weighting
they could have been lose weighting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't lose weight
you couldn't lose weight
she couldn't lose weight
we couldn't lose weight
you couldn't lose weight
they couldn't lose weight 	I couldn't be lose weighting
you couldn't be lose weighting
she couldn't be lose weighting
we couldn't be lose weighting
you couldn't be lose weighting
they couldn't be lose weighting	I couldn't have lose weighted
you couldn't have lose weighted
she couldn't have lose weighted
we couldn't have lose weighted
you couldn't have lose weighted
they couldn't have lose weighted	I couldn't have been lose weighting
you couldn't have been lose weighting
she couldn't have been lose weighting
we couldn't have been lose weighting
you couldn't have been lose weighting
they couldn't have been lose weighting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I lose weight?
could you lose weight?
could she lose weight?
could we lose weight?
could you lose weight?
could they lose weight? 	could I be lose weighting?
could you be lose weighting?
could she be lose weighting?
could we be lose weighting?
could you be lose weighting?
could they be lose weighting? 	could I have lose weighted?
could you have lose weighted?
could she have lose weighted?
could we have lose weighted?
could you have lose weighted?
could they have lose weighted? 	could I have been lose weighting?
could you have been lose weighting?
could she have been lose weighting?
could we have been lose weighting?
could you have been lose weighting?
could they have been lose weighting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I lose weight?
couldn't you lose weight?
couldn't she lose weight?
couldn't we lose weight?
couldn't you lose weight?
couldn't they lose weight? 	couldn't I be lose weighting?
couldn't you be lose weighting?
couldn't she be lose weighting?
couldn't we be lose weighting?
couldn't you be lose weighting?
couldn't they be lose weighting? 	couldn't I have lose weighted?
couldn't you have lose weighted?
couldn't she have lose weighted?
couldn't we have lose weighted?
couldn't you have lose weighted?
couldn't they have lose weighted? 	couldn't I have been lose weighting?
couldn't you have been lose weighting?
couldn't she have been lose weighting?
couldn't we have been lose weighting?
couldn't you have been lose weighting?
couldn't they have been lose weighting?