MODALS, SEMI-MODALS AND SIMILAR VERBS: PRESENT AND FUTURE CATEGORY Ability MODALS + base form invariable work as auxiliaries CAN + base form Possibility Probability > I can/can t finish this report by tonight. SEMI-MODALS & SIMILAR VERBS + base form variable do not work as auxiliaries BE ABLE TO (present/future tense) + base form > I m not able to understand these figures. CAN + base form > You can have your results sent by email. COULD + base form > We could book your next inspection now. BE LIKELY TO (present/future tense) + base form > The conference is likely to start late, the speaker is not here yet. MAY/MIGHT + base form > It may/might be changed if it s damaged. Advice SHOULD/OUGHT TO + base form > What should we do with this complaint? You ought to give > You d better go or you ll get there late. them a refund. HAD BETTER MUST + base form > You must answer the email by tonight, it s important! Requests CAN/COULD + base form > Can/Could you spell your name, please? MAY/WILL/WOULD + base form > May/Will/Would you fill in the form, please? Permission CAN/COULD + base form > Can/Could I check your ID card, please? BE ALLOWED TO (present/future tense) + base form > Are we allowed to ask for some compensation? MAY + base form > May I ask you for your personal details, please? Offer / Suggestion CAN/COULD + base form > Can/Could I help you with the document? WILL/SHALL + base form > I ll help you/Shall I help you with the form? Prohibition CAN T + base form > You can t use the photocopier unless you re allowed to. NOT BE ALLOWED TO (present/future tense) + base form > Employees aren t allowed to enter the operating room. MUSTN T + base form > You mustn t wear jewellery at work. Obligation MUST + base form > You must answer the phone very rapidly. Lack of obligation HAVE TO (present/future tense) + base form > We have to wear uniforms at school. NOT NEED TO (present/future tense) + base form > They don t need to hurry, they ve still got time! NOT HAVE TO (present/future tense) + base form > They don t have to send the order today, tomorrow is fine as well. Necessity NEEDN T + base form > She needn t take notes, the conference is recorded. HAVE TO (present/future tense) + base form > You have to ask quality control first. NEED TO (present/future tense) + base form > You need to enclose your medical history. Deduction MUST + base form > The carrier must be late, it hasn t arrived yet. CAN T + base form > It can t be our delivery, it s too early! 388 extra
Modals, semi-modals and similar verbs: present and future