I must crawl you must crawl he must crawl we must crawl you must crawl they must crawl
Forma com V-ing
I must be crawling you must be crawling he must be crawling we must be crawling you must be crawling they must be crawling
Perfeito
I must have crawled you must have crawled he must have crawled we must have crawled you must have crawled they must have crawled
Perfeito com V-ing
I must have been crawling you must have been crawling he must have been crawling we must have been crawling you must have been crawling they must have been crawling
Negação
Forma simple
I mustn't crawl you mustn't crawl he mustn't crawl we mustn't crawl you mustn't crawl they mustn't crawl
Forma com V-ing
I mustn't be crawling you mustn't be crawling he mustn't be crawling we mustn't be crawling you mustn't be crawling they mustn't be crawling
Perfeito
I mustn't have crawled you mustn't have crawled he mustn't have crawled we mustn't have crawled you mustn't have crawled they mustn't have crawled
Perfeito com V-ing
I mustn't have been crawling you mustn't have been crawling he mustn't have been crawling we mustn't have been crawling you mustn't have been crawling they mustn't have been crawling
Forma interrogativa
Forma simple
must I crawl? must you crawl? must he crawl? must we crawl? must you crawl? must they crawl?
Forma com V-ing
must I be crawling? must you be crawling? must he be crawling? must we be crawling? must you be crawling? must they be crawling?
Perfeito
must I have crawled? must you have crawled? must he have crawled? must we have crawled? must you have crawled? must they have crawled?
Perfeito com V-ing
must I have been crawling? must you have been crawling? must he have been crawling? must we have been crawling? must you have been crawling? must they have been crawling?
Forma interro-Negação
Forma simple
mustn't I crawl? mustn't you crawl? mustn't he crawl? mustn't we crawl? mustn't you crawl? mustn't they crawl?
Forma com V-ing
mustn't I be crawling? mustn't you be crawling? mustn't he be crawling? mustn't we be crawling? mustn't you be crawling? mustn't they be crawling?
Perfeito
mustn't I have crawled? mustn't you have crawled? mustn't he have crawled? mustn't we have crawled? mustn't you have crawled? mustn't they have crawled?
Perfeito com V-ing
mustn't I have been crawling? mustn't you have been crawling? mustn't he have been crawling? mustn't we have been crawling? mustn't you have been crawling? mustn't they have been crawling?